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.
[]
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.
[]
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.
[]
(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 !)
[]
—– 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.
___/\___
[]
Selfless = Anatman = Sunyata = Voidness
As I wrote in the previous post “No Teaching ??? ”, what
Lord Buddha was teaching was no other than the state of the brain “Selflessness”
such as when a person was completely absorbed into an action or practice.
(Though his approach to put emphasis on meditation may not be the best way.
==> So that many different methods was invented later).
But unfortunately, this neurological phenomenon and his Teachings has not been
correctly understood and kept by his followers. The reason was, as I wrote, it was
not clearly explained even to the immediate disciples and not all the disciples
necessary understood, let alone actually reached to a state of Selflessness.
[]
This history has been reflected to some tradition, such as that the Theravada sect
who is keeping rather ancient form of Buddhism define the “Voidness” = Sunnata is
pertaining to the Selflessness / Non-Self = Annatta, and this Annatta is in fact, no other
than the Sanskrit, Anatman.
Lord Buddha’s teachings had the fundamental stance against the Vadic Atman.
Therefore, it was NO-Atoman = Anatman. —– It showed, in the original teachings, there
was no separate notion of Voidness, because the feeling of Voidness = Detached view to
the world was a part of the Selflessness or Selflessness itself.
(The one who really possess the Selfless-eyes knows this.)
Because, when the Emotion was disconnected, and feel everything were detached, the
stimuli to any 5 senses doesn’t have significance —– it exists though makes no difference
as if it was not existed. Hence, didn’t need to specially talk about so-called Voidness.
(People who naturally acquired to speak English, as born in England, doesn’t excite or
talk about it. But foreigner who newly became bilingual tend to show-off that he can
speak English. = A person acquired Selflessness through long practice, doesn’t feel of
the Voidness anything special, since they gradually came together and feel nothing
that they are the separate phenomenon —– in fact the person doesn’t even noticed
such a phenomenon, either Selflessness or Voidness ever existed in the mind.)
[]
The history of Buddhism was the masquerade of sham Guru who pretended to know the
Lord Buddha’s teachings = Selflessness. —– As, there was a hear-say, the attribution of
the Enlightenment (Selflessness) is such as “Middle way” or a “Detached view = Perception
of Void” —– Those Guru pretended that they know the subject, and deployed the argument
while writing yet another script about “Middle-way” or “Voidness” simply they saw the
opportunities to become famous and rich. But in fact, some of them were Tantra, or
mixture of Hindu and as they were using their more familiar knowledge to describe
Selflessness and Buddhism, = Buddhism deviated so much. In fact some of them became
beyond the recognition from the original teachings and end-up almost like the Hinduism.
[]
Fundamentally, there couldn’t be any argument or needs to discuss the matter of
Middle way or Voidness, even the Panya Paramita as a separate phenomenon, since
they are naturally attributed to the same state of Mushin or Selflessness
= Psychological Phenomenon is Just one.
(A man in ill for caught cold shows the symptoms such as “High temperature”
“Headache” “Coughing” etc. so that to deal with “High temperature” alone and
dip him into a cold water wouldn’t help him. :-D)
People who doesn’t know the whole, in its totality, picking-up a superficial distinctive
feature, and talking in loud voice, pretending that he is The expert. Is exactly like a Theory
of Economics = use one monetary index, and try to describe whole economical trend.
Or mimicking the fashion of a star, and buy the same handbag, use the same buzz-word.
All those are the sign of “This person doesn’t know what he is talking about”.
Still, the trouble was that to the eyes and the ears of people standing by, who knows
even less, think those sham Guru looks, sound, great. —– The sensational new fashion
trend with buzzword of Voidness and the thousand of new-Buddha etc.etc. those new
concepts in Mahayana scriptures were made-up in this way. (But don’t get me wrong
I’m not against everything of Mahayana, as it opened the more flexibility and the
way of free thinking which is the essential to the Zen mind.)
[]
The worst was Nagarjuna who boasted that he brought back the scriptures from the
Dragon’s cave in the sea bottom. = What a shameless braggart. —– If you see it in
cool head, you may realize that he was a kind of sham doctor, a salesman selling dubious
beauty portion. And selling new buzzword of Voidness, exploiting the ignorance of the
Buddhists who doesn’t know what was the
Lord Buddha’s original teachings. (What Nagarjuna said, such as in the Panya Paramita
Sutra was not necessary wrong, and the funny paradoxical phrase was the attempt to
express the complexity of the human mind (co-existent Conscious and Unconscious mind)
though, to put such emphasis to Voidness alone was an indication of that he didn’t have an
own experience of the Selflessness (cut-off Emotional Region / Hypothalamus in the Brain,
hence the things and the matters were seen remote from Self-interest) = he didn’t know
that the Selflessness and the voidness was not separate phenomenon.
[]
To describe what’s going on inside of our body is not easy,
not mention inside of the mind, even to
Lord Buddha, especially, subconscious is invisible. —– Hence he was very reluctant
on the beginning (so, the scriptures says). That was why
Lord Buddha invented the way to teach direct, without resorting the verbal explanation.
—- though, some were worked, but not everything. So that, many different understanding,
interpretations were bore out, not mention convenient use of the term or notion even the
Divine figures from other religion.
When the person was in Selflessness, there is no need to have a Divine figure to worship.
Selfless hence with Dharma IS its state. Dharma is there together with
its mechanism of Karma. = It is not for worship but to live with.
[]
—– Of cause, the situation is more or less the same to me, I never seen how a
visual signal running from my eyes to the brain, = only guessing it must be like a
PET Scanner’s screen showed us. Still, as we know now, how the brain works on the
process of thinking, feeling etc. and we are able to shed the light
to the matter “What is the Selflessness” of which
Lord Buddha pointed out as the way to deal with Life’s problematic situation.
Now is the time to elucidate and Re-construct the teachings of
Lord Buddha to its original form. —– using today’s term = talking in a style and the
words, matched to the occasion and to the audience was the tradition started by
Lord Buddha. 😉
___/\___
[]
Focus-shifting Muliti-exposure Photo
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. 😉
——————- (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 !)
————- (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.
[]
Home-made flower :-D
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. 😀 )
Buddhists 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.
[]
Camera Stability Test
In 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.
—– 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)
Canon 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.
and further 1/15, 1/8, 1/4 —– even IS couldn’t save a shake on 1/4 .
The same as above but IS Off —– though, it didn’t make much difference.
Further 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.
Tamron 500 mm F8 lens was tested on Canon 5D Mk3 on 1/125, 1/60, 1/30.
The 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 EF 70~24mm F2.8 big heavy lens was set to 50mm and tested 1/125, 1/60, 1/30.
And 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.
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.
[]
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” 😀 )
[]
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. 😀
[]
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.
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.
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. 😀 )
[]
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. 😉
Next time I hope to upload more appetising body-parts. 😀 😀
[]
Ring Flash / Flash Story
——– (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
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.
[]
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.)
[]
End of Summer — Snap-shot by 500 mm Lens
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 ?
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
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.
And of cause, I could easily take picture of a Mulberry, few left high on a branch.
I found scattered confetti on a ground = it must be left by a wedding photo-do.
So, the summer 2013 has gone. (more or less) 😉
[]
Reflection on a pond
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.
Please see the photos in large size by clicking the photo (and again. 😉 )
Long telephoto lens mean, it was in fact just in a small corner of the water. 😉
[]




































3 comments