Yoshizen's Blog

What Buddha found

(According to the Scripture which Yoshizen found in the Dragon’s den in South London.

—– the Authenticity is more or less the same to any other Buddhist  Scripture )  ;-D

After 6 years of ascetic hard practice which was based on the Vedic concept, “With a

concentration of one’s mind = Atman can reach to the level of super natural power”

which is, of cause, on the belief of that the Atman exists. —– but to realize, it was not

suit for him, and left the ascetic practice, and having nursing his weakened body,

Gautama Buddha suddenly noticed that, while eating a milk-porridge offered by a

village girl Sujata, his mind was completely empty. = no mind or conscious was there.

It must had shocked him and made him realized that we’ve been doing a lots of things

without having any thought or conscious. We all are walking without thinking how to walk.

Facing this undeniable fact, he realized that the belief of Atman was utterly false.

What makes us to live, and walk was not the Atman but invisible Dharma.

Atman is not exists, and if we remove the mind or thinking and make it empty, the Dharma

which has been masked by the mind will prevail.

—– So, he tested this, sitting under the Pipal tree.   And after 49 days when he run-out of all

the thoughts, the mind became empty, hence, without any pre-conception and with the

clearest eyes, he saw the world as it is which is the sign of the Dharma.

It was the moment of his Enlightenment.

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Then he gave a thought, why the same man who had been believing the existence of Atman

now seeing it is not exists.   If really Atman exists, same Gautama must see the same Atman

still here, but the fact showed, it is not.    It changes moment to moment.

When things changes, others change as well with direct, indirect connection and this makes

the Dharma dynamic.   Hence, nothing stays permanent.

But it is the paradox, to be the Dharma it should be permanent. —– what only persistent in

the Dharma is, its nature of change, not the appearance.   Appearance is just a transitional

illusion on our eyes.   And our eyes were also attached to this transitional existence, us,

which we can not even define it is existing or not, because the one who try to define it,

is not a consistent existence either.

So the situation, which can only be describable is, the changing nature of the Dharma which

got a mechanism of Karma, which drives everything change, moment to moment,

that nature IS the Truth.

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It’s means, “No rigid existence of Atman, let alone its perpetuity, hence No Self, the Self what

we imagined”, everything is Void.  And the Dharma and its mechanism of Karma are all

invisible and unknowable because they may also be Void.

—– Yet still, we are here, there is no choice but has to accept this Truth.

When you can not beat, better join them, be flexible.   This is the Enlightenment.

It is not a kind of jump and dance discovery, but neither need to be depressed, because, this

is what we are and our situation is.   It’s mean, we neither need to worry because, our worry

itself may be yet another illusion, and anyhow we are here only in this moment in only one life.

And we are here because the Karma caused us to be here, there must be a reason which

we can not know.    We have to accept and respect the Dharma.

[]

And an essential wisdom to deal with this situation, —– to deal with almost invisible Dharma

and the Karma, we have to see them as it is, with transparent perception, never with

coloured glass, in other words, in Selfless clear eyes.   In Selflessness, in definition, there is no

Ego or Greed either. Since, the owner of Ego and Greed is not exist.

Therefore we have no possibility to loose anything = We will be in total freedom = We can have

totally liberated life, free from any delusion.

So, Lord Buddha started to teach the way to obtain this Selflessness.

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(Note : It is crucial to see the formation of Buddhism in an aspect of historical situation.  

It was a time when the Vedic belief was gradually taken-over by the new Hinduism.  

A religion of mostly just worship and make rituals toward the Vedic Deities (hence, ordinary

people were just by-standers) to a religion which is taking a personal account in each Karma

and perpetual cycles of Reincarnation (Samsara) = Hinduism, which horrified the people with

a fear to be trapped in a cycle and even born again as a beast.  

Lord Buddha urgently needed to to give an answer to those people and liberate them from

such deluded idea by teaching them that the reincarnating soul = Atman itself is not exists

hence the one’s death will be the total end which IS the Nirvana.

No-Self / Selflessness / Anatta / Anatman was the centre of his teachings.  That was why when

Lord Buddha was asked a question (again) “What happens after a death ?” or  “After a death

where the soul goes ?” He was so annoyed and didn’t give an answer.  —— On the scripture,

his personal attendance Ananda asked him “Why didn’t give an answer” “Because, it would

confuse them” = If this scripture was true, even a closest disciple haven’t understood the

teachings, or most likely  the writer of the scripture didn’t know what the Buddhism was.

(on that time the original teachings had already lost !) 

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—– It’s sound strange still, it is quite common tendency of the Karma, people who afraid to

get injured get injury.   (May be because, the person who had no fear was more agile and

able to see and avoid a danger = the same tendency appeared everywhere in the life.)

There are endless list of the paradox in the Life. = They are definitely making the life FUN.

And this is the secret to live happier peaceful Life.

So, this is the Enlightenment.

___/\___

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Tagged with:

No Word, No Teaching ???

There is a well known quotation in Buddhism   “In his 45 years of teaching,

Lord Buddha didn’t give even a single word”. —– Even as a metaphor,

this words could explain the most crucial truth in the teachings of

Lord Buddha.

(After 4 years I blogged here = this practice has been my equivalent of facing a rock wall

to sort out the conflicting notions and the words in the scripture, and on the end, I came

to the conclusion.)

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A trouble of Buddhism is that there is no authentic written “one teaching”.    

Even the earliest scripture, Agama Sutra was created 200 or more years later, thence

virtually all the 3,000 Buddhism scriptures were compiled on hear-say and guess-work.

(still the author may say “My understanding of the True Buddhism”)  

And on top of this,  it was a well known fact that

Lord Buddha,s words seemed to be different ocasion to ocasion and it was depend on

to whom he was speaking. —– So that, what I’ve been doing was, picking-up the pieces

among the mountain of disassembled parts and to re-configure the most likely the

original picture. (You may say, I also doing a guess-work) 😀

[]

Considering this Quotation “No teaching” together with other stories such as Kisa Gotami’s

mustard seeds’ story and a story of Churi Pantac (Shuri Bantoku) sweeping the garden, and

on top of those, “Going out on rainy night” (Test of Selflessness) story.

There was no explanation of why or what could be achieved by doing so, was given by

Lord Buddha. = It must be the teaching of “Think it yourself” though, is anywhere the

explanation why need to think yourself, was ever explained ?    By thinking it, (but thinking

in the subconscious level ! ) the one can reach own understanding which would lead to the

own Enlightenment, as the Enlightenment couldn’t be given or taught by any other person,

the one has to find it. (external communication hardly touch one’s subconscious.)

(It is completely different from “Believing the Gospel”= Belief is to firmly memorise the

Pattern, but not necessary know what to do with it, since implanted memory is a

foreign substance) = Because the very process of finding out, is a part of the Enlightenment

(This process is to Re-program the Brain and cut-off Emotional Region to handle a situation

= hence, without an involvement of the Self.)    Thus, to teach it in the words would spoil the

purpose of ths teaching itself. = Teaching in Words would only create a memory, but Buddhism

need to change the personality from the subconscious. —– While fully aware of this paradox,

Lord Buddha wouldn’t have explained the effect of the practice or what is the aim of it,

instead, only gave an instruction what to do.   He didn’t give-away the trick and the goal.  

In this extent, he didn’t teach but just gave a Task.   And while doing it, the person can reach

and gain a state of the “Mushin” and  “Selflessness”. —– Observing the person’s progress,

Lord Buddha must have given further instruction what to do next,

and where is the point to watch, but not what to think or why / the theory.

( Practice  can be done purely subconsciously  (in Mushin)  but the Word  ( = Categorized 

notion)  couldn’t be operated away from the highly conscious brain activities.)

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A crucial point in Buddhism IS there is no promise of salvation BUT “Save yourself by

reaching the Enlightenment by yourself” —– otherwise, Life is suffering, getting ill,

get old and die. = very blunt message. = (Very Un-Religion like message in deed, since

Buddhism is a teaching of Truth, not a false hope or pinky illusions.)   And all the

8 right path etc are what you do.   Not what to believe. In fact, all those “Do what” are

obviously in the common sense.   Nobody would suggests otherwise.   So, there are no

fancy ritual but simple practice = matter is not what or why, but Do.

Lord Buddha might actually told those words to his followers, but no words of why to

Do it = because, no matter of what, but actually Do it unconditionally then

what would happen = Was the teaching.

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So that when you do, just DO without thinking,

without questioning, it’s mean in Mushin, was what

Lord Buddha taught, NOT a complicated reasoning or mythical story which only exists in

abstract notion = Delusion.    “What we can DO (include the thinking) without our lexical

conscious = in another word “DO it subconsciously” is the Core of the teaching.

Lord Buddha must have taught how the Karma (cause and result) works in each moment,

such as behind our eyes how the nature is interacting, and all sorts of the physical

phenomena, almost like a science teacher, and taught this is what the Dharma is.

But strictly remained within the rationality and on the facts.

(even though it was in the 2,500 years old standard).

[]

Since we can do, we can live, without conscious (in deed as we are walking without

thinking how to walk or we are thinking without us noticing it.)

“In the truth, SELF is not a real existence but only an imaginary existence = The Self or

Atman in Vedic teachings is a false”.   Therefore the teaching couldn’t be based on the

lexical thinking which is a product of the conscious Self. —– The paradox was that the

teaching was “to become and to live Selfless”. = How to teach and learn the Selflessness

without relying on the product of the Self / Word and the notion. —– Only a way to

learn “To do without thinking” is just watch the way to DO, then Do the same.

[]

To teach or to tell in the words, “Do it without thinking” is the same as to tell

“Tell me that you are sitting in silence” 😀 —– So that,

Lord Buddha just asked the followers to follow him and do the same.

The followers studied by just watching and learned by just Doing.

By just keep Doing, the followers get used with it, and reached the mind-set to Do

and Live without conscious of the Self.   (Without conscious mean, it is not only in

Mushin but be with the Karma of its Moment, in another word Ichijo / Oneness with

the subject or ultimately with the Dharma.)

[]

So that, the teachings were not in the words, hence, it sound as if nothing was taught.

But that was what Buddhism was in the original form. —– And this was the very reason

why the tradition of “Teaching by Heart to Heart, without relying on the words”

(教外別伝,不立文字,依心伝心)  has been kept in the Zen teaching.

(= Just DO the work. Soon or later you will learn to do it automatic/Selfless.)

Yes, Lord Buddha has taught.  In a way NOT taught anything at all.

So, the quotation was correct.

___/\___

[]

 

Focus-shifting Muliti-exposure Photo

Multi'Ex-Focus shift Photo(1) DSC_0878-001

Don’t worry, You don’t need to clean your specs.

 It’s not your eyes. —– Photo IS fuzzy and it’s meant to be.  😉

Multi'Ex-Focus shift Photo(2)DSC_0874-001

——————- (Hey, this is a very very pretty girly picture ! = Click it and see enlarged. 😉 )

These photos were taken by a technique,  Multi-Exposure with Focus-Shift.

—– In order to have an effect = a core image with out-of-focus halo around, I did

it before while camera was set on a tripod.     But this time I did it by hand-held.

I guess, it could be done by Hacking into camera’s operational program and

over-drive the AF motor while the camera is giving the multiple exposure. 

(Single exposure is too short to manually shift the focus. —– In the old days of

wooden camera, the old masters used the same technique to shift a focus while

giving a long exposure.  And the Minolta Alpha 7000 had this effect in their

Portrait Mode to create softer image. ) —– But, I found it was not

difficult to move the focus ring during the few multiple exposure. = Just Do it,

and if not successful try it again —– success rate is somewhat one in four.  😀

(not only how far focus to be shifted, but a trouble of camera-shake is also

a spoiling factor.  = If you are a bad shooter, shoot a lot — one might hit a target !)

Multi'Ex-Focus shift Photo(3)460-001

Multi'Ex-Focus shift Photo(4)461-001

Multi'Ex-Focus shift Photo(5)462-001

Multi'Ex-Focus Shift Photo(8)DSC_0844-001

————- (This must be a puzzling photo = where it was focused ?  😉 )

Keen reader of this blog might be realized that the post in these days were all connected

behind the scene = how camera can be steadily hand-held etc.  (without having enough

practice and gained a confidence, this kind of photography would be only a waste of time.  

Creativity does not occur out of blue,  it needs to have a base, or incubating ground.  

A practical adjustment  or improvisation may suddenly conceived on the spot but

it is a minute part of the operation.

Multi'Ex-Focus Shift Photo(7)DSC_0812-003 

Multi'Ex-Focus Shift Photo(9)DSC_0815

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Home-made flower :-D

Arty Flower A09A0882-001

It’s a middle of September, not many flower left.  

—– Don’t tell me to go to a florist.  I don’t buy flower or plant.  

They should be where they grow.  Unless I found a pot abandoned on the street.

—– (provided it’s not a meter-tall tree.)  —— Then Kinetorori murmured me  

“If no flower, why not make one yourself” —– It’s a his bad habit.

It’s the most un-Zen like practice though, —– I did.  😀 

 (Out of used envelope.)

[]

So, a flower is blooming in my room. (keep blooming for foreseeable future.  😀 )

Arty Flower(2)A09A0889Buddhists telling us “Live on the moment”

—– though, I took a way against it.  

A photograph is imprisoned to the moment.  

So, to have a Jailbreak of this “Moment”

I made a photo to have rather prolonged span

of time (unlike ordinary photographic norm).  

The photo above consists multiple exposure

while having its focus shifted.  = Yet another

attempt to create fuzzy image —– went

beyond a soft-focus lens,  yet keeping a sharp core of

image, unlike a pinhole photo.  

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Camera Stability Test

Stability Test (1)A09A0702In the previous post, I talked about the Image Stabilizer a bit though I’m not a fan of it.   Since, I haven’t seen any photo which was benefited from it so far.  May be because, even without it I’m quite capable to shoot good enough picture hand-held. (even 500 mm lens !)

People may get a benefit of its Placebo effects = Peace of mind stabilizes the hand.  😀 

Still,  it was only “Impression from my experience”  —– not from the objective comparison.

Stability Test(2)A09A0706 —– So, in this occasion I purposely tested it.  

(but I wouldn’t say it was scientifically rigid —– Just clicked the camera as usual.) The test object was a “Pinhole-light” as you can see the photo left. = If the camera shakes, photo will clearly shows its movement at once.

I gave only one click for each speed, 1/125, 1/60, 1/30 but for Image Stabilizer (IS),  further 1/15, 1/8 and 1/4  were tested —– It was free-standing hand-held though, I was using my Chest-pod.  😉 

( Check the image of pinhole on the enlarged photo please)

ST-Test 200mm IS-On 459-004Canon EF 200~70, F2.8 L IS lens on 5D Mk3  with IS On.  From left  1/125, 1/60, 1/30.   Lens zoom was set to  200 mm.

1/15 , 1/8 , 1/4and further  1/15, 1/8, 1/4 —– even IS couldn’t save a shake on 1/4 .

ST-Test 200mm IS-Off 459-006The same as above but IS Off —– though, it didn’t make much difference.

1/15 , 1/8 , 1/4Further slower speed = 1/15, 1/8, 1/4 —– 1/8 started to show a shake.

(Its horizontal movement showed,  Chest-pod stops vertical shake more !)  = It’s mean, IS made only one stop difference.

5D Mk3 + 500mmTamron 500 mm F8 lens was tested on Canon 5D Mk3  on 1/125, 1/60, 1/30.

D800 + 500mmThe same Tamron 500 mm was tested on Nikon D810 body,  1/125, 1/60, 1/30.  

Results shows almost no difference on the different camera body.

Canon 70-24 @50Canon EF 70~24mm F2.8 big heavy lens was set to 50mm and tested  1/125, 1/60, 1/30.

Nikon Micro 55mm F3.5And small Micro Nikkor 55mm F3.5 lens was tested on Canon 5D Mk3 body.

—– Different size and weight of the lens showed not much difference.  

My conclusion was, as I thought before, the Image Stabilizer makes little difference, it was mare one stop.  (Anyhow for 200 mm lens, hand-held 1/4  (if not 1/8) is a hopeless situation.)  

So the lesson was, that if you are a good shooter, a sharp photo you made was = because you are a good shooter, not because of Image Stabilizer.  And if you are a bad shooter, no Image Stabilizer will rescue you.

Stability Test(3)459-008 Those lenses are the lenses I tested with.  

Some are the latest current model but 55 mm Micro Nikkor and Tamron mirror lens are more than 40 years old. —— still working perfect (optically  😉 )  

And the kitchen was where I did those test shots.  The shooting distance was about 2m, so, I shot them while standing here (half step forward).  All from the same distance.

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Stabilize the Camera — Chest-Pod

 There are many way to stabilize the camera.  Starting from the way to grip the camera.

 Ultimately a use of Tripod or Mono-pod, even a use of a Bean-bag.   

Still, it’s all down to a mind-set of the photographer = Whether to pay an attention

against a possible camera-shake and become aware of own doing?  

If it is a case “Doesn’t matter that the Stabilizer built into the lens should take care of

that problem”.   —– This is the most funny situation.   It is only a psychological trick.  

The stabilizer may save a photo while cancelling a camera shake for further 3 stops = such

as in a situation of 200 mm lens, it would be safer to use a shutter speed 1/250 or faster  

and with the aid of stabilizer it “may” drop to 1/125 or 1/60 —– still “may not” works.  

In such case, I would set 2 stop higher ISO setting to get 2 stop higher shutter speed.  

—— In the same time a  “Maestro” may say “other than ISO 100 color is not in its best”

—– Oh, really ? !  The BEST mean it is still in a relative matter = NOT the absolute.  

Our right-eye and the left-eye are not necessary even seeing the same color.

(Test it your self if you are not aware yet.  😉 —– If not aware this discrepancy,

how the one could boast about “the critical Color”  😀  )  

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I used be working close together with the publishers, their printers, plate-making engineers,

and one of my closest climbing mate of mountain has studied Printing Technology and

became an expert of the photo-scanner (such as Crosfield’s machne) —— I heard many

wired stories of “Special Sorcery” in their trade —– still, when it makes the print on the paper,

such as slight difference of the paper which is different a roll to roll, or even a humidity in

the air changes absorbency of the paper hence changes the color of print,  etc. etc.  = there

can not be any reliable absolute or perfection.  It is just someone’s preference.  

Anyhow, computer to computer, this CRT to that LCD screen, the color is always different

= what fuss about such minute difference.  😀  

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As I grown-up in the time when the color film was ISO 64 or 100, B/W was 400 and even with

push-development,  ISO 1600 or so (Kodak Royal Record Pan = ISO 12500 was existed though)

I had to stabilize the camera other than ISO speed.  So that, I tried many kind of  chest-pod.

(though there are too many — even I don’t remember how many I bought and made myself.)  

So, I show you two of my handmade.

Chest-pod 458

This is a chest-pod of current use on my DSLR.   The simplest, hence the most neat one !

It was made by aluminium pipe and a short piece of  C-channel (which was cut and bent).

(A trouble was, the Airport Security suspects that this is a part of a disguised weapon.  😀 )

—– Unlike western people,  I hold a camera right side down  (it’s a Japanese tradition)  

 therefore when I shoot vertical-way, this chest-pod come against my left shoulder

just under the collar bone. 

Chest-pod,Battery Case-456-001

And this is the other one I made for EOS Film Camera which doubles as an external

battery chamber.  ( AA x 5 rechargeable  batteries instead of 2CR5 Lithium battery)

And it functions as a chest-pod exactly the same way as the other one.  But this one can

fold down under the camera bottom. ( I don’t make a rubbish for a sake of Youtube.  😀 )

The advantage of this shooting style is, the hand which triggers the shutter, its elbow was

firmly lodged onto the body, hence it is far more stable than the style having right arm in

the air and move a finger to trigger.  

—– May be because of the fundamental flaw of the camera holding style in the west, the

camera shake is unavoidable, hence, it gave an opportunity to the manufacturer to produce

“Stabilizer” and sell it for £500 more price !    (I don’t think it costed such amount for them. )

—– In a video image, shaky picture is annoying but on a still, “two stops slower” seems not

much use —– better use same £500 to another shopping, and set 2 stop higher ISO, —– above

all, have a practice to gain a stable holding of the camera would be far more advantageous.  

Since, to gain calm, stable mind to stabilize the hand would be far more beneficial to the 

one’s whole life in general.     Anyhow, not all the lenses you got, has a stabilizer, and

living with unstable mind wouldn’t bring any happiness.    

Better think it in different angle and better change the mind-set and the way you shoot.

(If you doubt, have look a photo here and the photos by 500 mm lens in the previous post. )

(Here, the Zen practice comes in.  😀 ) 

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Body Parts

Those photos are just a casual snap of the people playing with computer.  

But using 500 mm lens hand-held. = naturally, there was not much room to use

such long telephoto lens in a small room, picture became a kind of close-up.  

Yet still, it was 2 m away, people didn’t mind to be photographed much. —– and

I found a quite unusual usefulness of this lens, despite it is rather dark F 8.

(ISO was set to 1600,  shutter speed was  1/15 ~ 1/30, AV mode — just to mention) 

I hope you enjoy the photos.  😉 

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Body-parts(3)445-001

Body-parts(4)446-001

Body-parts(5)448-001 Body-parts(6)447-001

Body-parts(7)450-001

Body-parts(8)449-001

Body-parts(9)452-001

Body-parts(10)451-001

Body-parts(11)A09A0632

Next time I hope to upload more appetising body-parts.  😀  😀

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Ring Flash / Flash Story

Ring-flash on Fisheye(B)455

——– (This Ring Flash was made to use with the Fish-eye lens on the

——– Yoshi-handy handmade camera, 36 years ago !  😀 ) 

In some posts ago,  I’ve shown Studio Flash and ring Flash tube.  

May be I should talk a bit more about Electronic Flash-light. — Why It’s called “Electronic

Flash” was, before, Flash-light meant Bulb Flash = the people over 60 might remember,

even if it was not a typical bulb shape, how about Flash-cube / Magicube at the time of

Kodak Instamatic camera, they are still flash bulb, but only small.  🙂

Flash bulb was an “Explosive device” = thin aluminium foil was packed into a glass bulb

with Oxygen and ignited by an electric spark, with a “Bong” noise !  

( I only know from Antic collection though, yet before  Flash bulb, it was an explosive 

magnesium powder = it’s literally explode ! —– hence, all the assistant of a photographer

used to have a lots of spot on their face, burnt by the exploding magnesium powder.  😀)

  []  

Unlike such hot staffs, electronic flash is using a discharge of high voltage electric energy

through a Xenon gas filled tube.  To make this, a capacitor inside of a Flash was slowly

charged-up to high voltage, then discharge it in an instant to produce very intense bright light.  

Like an electric spark, it needs to be high voltage, and the larger the capacitor,  

the light produced from it would be the brighter.  

This is the reason why a camera’s built-in flash, which got only small capacitor inside, was

not bright-enough to reach distance.             In contrast, a studio type big Flash having a bank of

Bank of Capacitors A09A0669

capacitors connected parallel to store huge energy, 

and the big flash tube was made by a quartz to

withstand the heat shock created by a

discharge of huge energy.  

And to charge-up those capacitors, studio type is

using the main electricity and a

portable type, clip-on type are using electronic

voltage converter to rise the battery voltage

to 315 ~ 350 V.  

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Capacitors A09A0667

As I said, the electric energy is first charged into

the capacitor.  

The capacitor is an electric device, which was

made by insulated two metal plates or foils

to store electric charge.  In order to store as much

as energy, very thin two aluminium foils were

tightly wound together.    And to separate two

metal foils, paper or plastic film ect. which called 

dielectric material was sandwiched between.  

But most of the capacitor used in a flash equipment is a

type called Electrolytic capacitor which is not using common insulator, hence smaller in size.

   []

It is not well known to the people that those Electrolytic Capacitor has a limited life.  

Especially if the equipment was not used long time (more than a year) they might be dead

and a moment when it was switched on again after long rasp of the time, the capacitor

would be internally short-circuited and gone for ever. —– ?   Why the insulation breaks ?

[]

If you tested the conductivity of Aluminium, you may know, despite the Aluminium is a

very good conductor,  Anodised surface shows no conductivity.   With the Anodisation,

the surface  of Aluminium was covered with the aluminium oxide which is an insulator.

Instead to use a separate insulator between two Aluminium foil,  Electrolytic Capacitor

is using this oxide coating developed own surface as a dielectric / insulator.  

So that, as long as the capacitor was kept receiving electric current, they maintain

the oxidized coating on the surface of aluminium foil.   But if the equipment was left

unused long time, the insulative coating deteriorate.

—– And a moment when it was switched on again, and the voltage rose high,  the

insulation breaks down and makes two foils short-circuited and start to generates heat,

or the power transistor pumping the high voltage into the capacitor burns-out.  

If the capacitor over heat  it would explode.   (In fact, the situation is always the same

where ever electrolytic capacitor was used — such as even an audio power amp.)

  []

The remedy to this situation is, the same as to initialise a capacitor in a factory.  

= slowly charge up the capacitor while waiting the insulating coat grows on the

surface of the aluminium foil (in its anode-side, hence it called Anodisation.)

—– To do this, professional people use variable transformer (Rheostat) and sloooowly 

rise the voltage while giving hours of time.  

(If you try, — You need to constantly measure the voltage of the capacitor —– first

second or two of switch-on, when you see the voltage rise to 5~10 V, then switch-off — if

the voltage shows “slowly” dropping, switch on again to see it reach to 15 V —- then

switch-off and wait till it’s drop to 10 V and switch on to 20 V again (like two step

forward, one step back) —— in this way until it reached to more than 300 V then to

the full —– all the process will takes hours !   🙂  or 😦  

 —– But if you see the voltage drops rather quick, and  never rise above

the certain voltage, don’t push it further, and you have to

accept that the capacitor is already dead !  —– Sorry about  😦  

(still better than to see it exploded in messy manner.)

  []

In another approach, if the capacitor could be disconnected from the charging circuit.  

(But this is only for the experienced person.) —– Use the main AC power.  

Connect a Rectifier to live, and 100 K (may be reduced to 50 K, 10 K on the later stage)

register to neutral.   And use this rectified direct current to charge up the capacitor.  

In the first few seconds, when the capacitor’s voltage  rose to 10 V, then disconnect.  

When voltage was dropped to 5 V then charge it to 15 V (Keep a distance of up and

down proportional  —– repeat this again and again, while time to time having a break

(to have a cup of tea  🙂 and make a capacitor to regain a potential to charge-up to

higher voltage) and slowly bring the voltage to the full.  

From the main voltage in Europe, rectified voltage would be 310 ~ 330 V, about the

same voltage of the working flash.  But in the US  110 V, it’s needs  to use voltage

doubler circuit.   And a fully charged capacitor of 1000 microF, 2000 microF has an

energy to evaporate a tip of screw-driver, if it was short circuited — and hell like Bang!  

= Before you do any  work, always DO NOT FORGET to discharge the capacitor

through 5W 1K register.

(If you couldn’t understand  what I’m talking here straight, DO NOT attempt to try this !

—– to touch AC main, 200, 300 V DC is killingly dangerous for amateur !  

(Accident happens in a completely unexpected moment, in an unexpected situation.)

  []  

Assuming the capacitor is working perfect, the rest of the flash circuit is rather simple.

The thick two cables from capacitor were connected to the both end of a flash tube.  

And an additional cable was attached outside of flash tube = this is the trigger which

receives 3000 V or higher voltage pulse. —– To trigger this very high voltage pulse, a switch

inside of camera shutter-mechanism used to short circuit a small capacitor in the primary

side of trigger coil, then in the  secondary side 3000 ~4000 V pulse will be produced.    

But now-a-day, sophisticated electronic camera can not take such high voltage, —– instead,

a trigger to flash was done by low-voltage signal.  

= (In another word, to connect very old flash to a modern DSLR is highly risky.  

(If you got Test Meter, you can measure how high the trigger voltage of the flash, on the

connector of  Flash extension cable.  If it shows more than 15 V, (it could be as high as 100 V),  

never use it direct to the camera = Use a Slave trigger.)

  []

Once you understood the structure of flash-light, to modify it, is not very difficult.  

My Ring flash on the photo was made to take the power from Brown F900 power pack

but before it was connected to Kako hummer-head flash.   As long as it receives 300 ~ 350 V,

it will flash and the light-intensity is depend on the size of the capacitor.  

(By the way, Flash-tube’s life is also limited !  = Don’t expect it works for ever.  😀 )

(That Ring Flash Tube can take, up to  200 WS = C x V-square x 1/2 = Wat-Second

such as—–1000 microFarad x 315V x 315V x  1/2 = 50 WS = GN may be about 25~28  though

it’s all depends on the efficiency, size of the reflector, how old the tube is, etc. etc.)

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End of Summer — Snap-shot by 500 mm Lens

Posted in Art, Existentialism, Fun to read :-D, Photography, Who is Yoshizen, Zen in Action by yoshizen on September 3, 2013

T500mm End of summer(1)A09A0607

If I didn’t tell you, you may not noticed that they were taken by 500 mm lens.

All the photos here except the obvious one were taken by a Tamron 500 mm

Mirror lens.  Photo looks pretty ordinary, and nothing special are they ?

T500mm End of Summer(2)440-001

Even with its 500 mm focal length, thanks to its fundamental design (incoming light

was internally reflected back and forward twice)  mirror lens can be less than 1/3rd of

Tamron500mm-454-001

its  focal length = in deed,  this lens got

only  11o mm long and 87 mm diameter

= say, mere one-size larger than my mug-cup.

So, the people on front of the camera may not

noticed that they’ve  been photographed.

= anyway they don’t mind others 10 , 20 m away. 

T500mm End of Summer(3)439-001

And of cause, I could easily take picture of a Mulberry, few left high on a branch. 

T500mm End of Summer(4)441-001

I found scattered confetti on a ground = it must be left by a wedding photo-do.

T500mm End of Summer(5)442-001

T500mm End of Summer(6)438-001

T500mm End of Summer(7)A09A0524

So, the summer 2013 has gone. (more or less)  😉

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Reflection on a pond

T500mm-Reflection(1)A09A0590

Those are the simple straight shot of the reflection on a water.  

If only it was not simple, was they were shot by 500 mm lens.

T500mm-Reflection(2)436-001

Please see the photos in large size by clicking the photo (and again.  😉 )

T500mm-Reflection(3)435-001

Long telephoto lens mean, it was in fact just in a small corner of the water.   😉

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