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.
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. 😀 )
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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. 😀)
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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.
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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.
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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 ?
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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.)
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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.)
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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.)
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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.)
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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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Hand-held Photo for 1 second
This photo was taken in a church in Schwetzingen, Germany when I visited and listened
hundred of Pipe Organ in Europe.
As far as I remember, this photo must be the best usable Hand-held photo (which got an
evidence), in my entire life. —– how can I say this ? = The film was Kodachrome ISO 25.
The lighting condition like this = if it was ISO 400, 1/30 or 1/15, F2.8. —– just count on
your fingers, it became 1/2 ~ 1 second for ISO 25 Film. But the lens was Pentax 17 mm F4.
It was in deed 1 second F4. Please look into the mirror above the organ key-board. =
The image in the mirror was me holding camera = no tripod.
Still you can read (well more or less) the music score.
Not too bad isn’t it for Hand-held for one second ?
—– (Knack to hold the camera is, 1) Close armpit and put elbow solidly on the chest.
2) Don’t push button with pointing finger alone but do it as if you are squeezing all the
finger inward. 3) Relax, never been tensioned. Just hold breath and release the shutter.)
(Because of an Organist who is facing the key-board, hence couldn’t see the progress of a
mass service behind of him, it is necessary to have a mirror there to see the timing.)
—– Well, it was a long time ago, when I had a muscle. 😀
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Home-made Light-stand (2) — Copper Clad Cable Spiral Lamp
This Spiral cable Lamp was the earliest I made in England. While stay in London, I used a
Film Labo’ where many Japanese photographer were taking their film to be processed.
Photographer is the observer of the world and the human life. And the people who is
developing their films are yet another kind of the observer. —– By watching the subjects
in my film, the owner of the Labo’ seemed to have noticed who I am, and asked me
“Do you know electronics ?” “Yah, a bit” “Do you know about this machine ? Can you repair ?”
—– It was a hefty spot welder. Hefty because of it got really hefty transformer inside, still
its structure is rather simple. “OK, I’ll check it with my tool tomorrow”. = Next day, I found
the welder’s brake down was caused by a micro-switch in the timer controller and I replaced it.
= Here, working again. The owner was very impressed, not only a photographer carrying a
test equipment but actually able to repair the machine. (He knew, knowing and able to do is
not the same thing.) “OK, in exchange, you develop those 10 films free” “Oh, sure”
I like a kind of relationship which doesn’t involve a money = I help you, so you help me.
And I started to use their small room in their studio as my office and in exchange, if
anything repair kind of needs happened, I’ll help them. Almost like an in-hose engineer. 🙂
(That’s how I got an experience to deal with 2500 V, 5000 WS studio type flash etc )
But to carry out some repair, in a awkward corner of the big studio space, or under the film
processing line, I needed to have a work-lamp. I made this Spiral Lamp of which all the
materials were piled up in a corner of the studio where used be a huge vegetable storage
in a corner of “used to be the Covent Garden Flower and Vegetable Market”.
(So, I know the Before and After of the Covent Garden Market ! 🙂 )
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Copper Clad Cable is not common Japan where the main voltage is 100 V. So, I first seen it in
this country. The cable was covered by a copper tube hence it is quite solid and fire resistant,
still having certain flexibility or able to bend. Most of work lamp was wire caged to protect
glass light bulb = so, I got an idea to use this cable itself to make protective cage around the bulb
—– then wall mount switch-box was fixed as its base. (Socket was fixed to the end of the cable
using Epoxy glue). —– this is yet another minimalist’s approach though, all what we need are
there and perfectly functioning. It may looks odd and a bit awkward to change a bulb though,
it worked perfect for my purpose. Is there anything wrong with it ?
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PS : A quite few people, even the electrician who came to my room to re-wiring and the readers,
questioned me, how I could make the Spiral so neat ? = Cable (Piro) was first close wound around
a gutter-pipe about 8 cm, then it was pulled and expanded. Then both end was bent to the
wanted shape. (Of course, the both end, the copper tube was peeled off and the conductors =
two cable were covered with proper insulator sleeves and made proper electric connection.)
Though, I wouldn’t encourage the reader to do this kind of work, unless the person got enough
skill like a qualified electrician. To play with main power is a very dangerous business. It kills.
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Home-made Light-stand (1)
This is one of my home-made Light-stand, second simplest one, which I found in a box
I’ve stashed it away 20 years (?) ago. (the most simplest one was using a bent single pipe.)
Light housing was made out of 7 mm pipe of which the top was rounded by tapping and bent.
Photo Left : Originally it was using very small tungsten bulb for an indicator though, those
bulb doesn’t last long, not mention a problem of heat-up.
So, in this occasion, I changed it to a wite LED (Photo Center) . In this kind of design, the matter
is the “Adjustable Pipe Clamp” = here they were made using shallow Aluminium C-channel,
bent to U-shape. = One screw can loose and tighten everything at once. (Photo Right)
Thanks to LED, it can light up pretty long time from three AA batteries hidden under the base.
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Don’t ask “What is for ?” = You may not ask a painter “Why you sketch this land scape ?”
To see an aluminium pipe and think how to use and to make them into a certain shape and
appropriate structure is a game of creativity. —– simply it is a fun. 🙂
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Macro Flash-light / Small Flash on Goose-neck
This must be a “You got to be joking” kind of funny, cheap adaptation of a flash for Macro
photography. —– And I would say “Why not” 😀
Since, most of my existing flashes, except Canon 430EX-II are not compatible for the latest DSLR
to give TTL flash control, I needed to buy one for Macro-flash modification which I described
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The flash I found second-hand was 270EX-II, which is using only two batteries hence pretty small and
light enough to mount on top of a Goose-neck, instead to have internal modification I did before.
Decisive fact was that I already have [off the camera flash cable] made by Sunpak more than
20 years ago which was similar to the German SCA300 adapter system used by Metz, Agfa etc.
Sunpak tried to make the adapter for all the cameras which has been started to have new function, not
only ready-light, TTL flash control but even for focus-light for AF which was newly introduced AF camera.
Because of the Camera design was keep changing while adding new function, it was a hard task to
keep-up. —– On the end Sunpak became out of breath and bankrupted.
—– so, on that time lots of Sunpak products became obsolete and sold in a give-away price.
Once, Sunpak was a dominant force in the flash-light market with very innovative design and
versatile system such as the interchangeable head system with Telephoto head, Infra-red head,
Bare-tube head etc. not mention they produced very powerful model as well.
So, when I saw a box-full of their [Flash Extension Cable] in a camera shop, I bought all of them at once,
more than 20 cables for every type of cameras. —– Flash shoe is an awkward component to make
ourselves, (still, I worked to make and modify, such as adding one more TTL contact to Pentax type to
make it Nikon type etc. 🙂 ) therefore, it’s better to keep enough supply of many types in hand,
and it’s got very useful coiled cable as well..
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DSLR camera manufacturer is selling their [Flash Extention Cable] and all of their Female connector has
only 1/4” Tripod screw. = Once flash was put on the cable, it has to be mounted on a stand, otherwise it
has to be held by a hand. In contrast, the best thing of the Sunpak Extension Cable is, male and
female can be coupled, in other words flash can be perched on top of the camera, only 45mm
higher position. So that, it can be changed Flash on the camera to hand-lighting just by pressing release
button (which can be locked as well) hence, as far as I know, this is the best designed [FlashE xtention
Cable] in the history and the materials and the construction are also very good.
———– (Photo above: 1″ Aluminium C-channel is the best to make many structures.
———– And 3/4 ” Square Pipe will just fit inside, hence they can make best coupling system !
———– And they could be easily cut by hand tools, though it’s a very tedious work. 🙂 )
So, my modification was just Epoxy glued female connector on top of a goose-neck and made a small
piece of aluminium channel to connect the goose-neck to the camera bracket which is the in-hose
standard to connect any of my flash-light systems to the cameras.
—– To use the 270EX-II flash as a Macro-flash, thanks to the flexibility of goose-neck, flash can be
positioned (more or less) where ever desired, with or without bouncing diffuser.
—– following photos are the Test sample of each lighting. (Focus and F were Fixed)
————- (The Lens was CanonEF Macro 100mm F2.8 with home made “Ultra Proxer” / F2.8)
————- (This last set of sample photo was using F11 —— slight difference of lighting changes
————- the character of the subject ! —– See the difference on enlarged images )
(And the sample photos in the field will be followed ) 😉
—– those photos are taken in my room (I’m still busy dealing with boxes 🙂 ) of a small visitor,
Beetle, head to tale 6mm or 1/4″ big, using Ultra Proxer on Canon EF 100mm Macro
with 270EX-II flash and extension cable.
(
——— (Photo Left : 100mm Macro at F16 + Ultra Proxer, 270EX Flash with Diffuser — taken x2 size.
——— Photo Right : same setting but at F 2.8 )
Ultra heavy Proxer — Close-up Lens from TV Zoom
Those photos were taken by Zeiss 85 mm F 1.4 lens, with my handmade Proxer was
attached to it. The Proxer = Close-up lens was in fact, a front element of a Canon
TV-Zoom lens which I’ve cannibalized from a broken lens. (hence cost nothing 😉 )
As the original lens was a very expensive TV lens, it has a very high-quality
Achromatic lens. ( Even ED glass may have used in its construction.)
In most of the case, it is not very difficult to disassemble the lens —– in this case,
after unscrew 14 small screws, the front Lens was disengaged from its focusing helicoid.
—– then it was glued to a 67 mm filter ring. (filter glass was removed beforehand)
Front-element of this lens works as a close-up lens, hence with 85 mm lens it act like
a life-size Macro converter. —– And with large 1.4 F-aperture, it gives very shallow
depth of field. (and very big Bokhe ! — Still, the focused image itself is quite sharp ! )
——(Metric ruler was shot in 45 degree. Left: F1.4 / Center: F2.8 / Right: F5.6)
Though, this 3 cm thick solid glass in a solid metal helicoid is really heavy, almost
the same weight of 85 mm lens itself. 😀
(The photo above : Left was taken F1.4, but Right photo was F5.6 )
(In those photos, look at how the single hair of fluff was captured on F 1.4
= Please click and enlarge twice)
As you can see from the photos above, off-focused Bokhe is a bit too much for
most of the people’s taste though, that is what I’ve been after.
(This effect couldn’t be mimicked by PS ! )
—– to get this effect, I tried many Soft Focus lenses, Filters, Pinhole Photo,
Double-density Pinhole, even Double Focus in Double exposure.
But there is no sharp core in a Pinhole photo, and the Double exposure has
the trouble to keep the subject exactly in the same position etc etc.
= After many many years of attempt, now I think, I got what I wanted.
Only a problem is, this TV-Zoom Proxer gives only life-size close-up image.
May be I need to find another lens which got longer focal length. 😀
Still, it’s a start.
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Ultra Proxer — Recycled from Old zoom lens
Proxer is an old name to call Close-up lens which attach on front of the lens.
The lens I’m talking here is a front lens element I’ve scavenged from an old zoom lens 85~210 mm F 3.8, sold under many different names —– the photo was in the previous post (first photo, Front lens was near the left end).
Most of the close-up lens consist simple convex, single meniscus lens mounted on a filter frame. Same idea to put a magnifier before camera lens and take close-up photo. It was convenient to have a small adapter lens to take closer picture, as in the old days there was no such things like a macro setting on the Primary lens (Standard lens).
—– To make a high-performance Proxer, I did some cut and bonding works with epoxy glue, which was worthwhile to create a treasure out of junk. 🙂
Photo left : Don’t hesitate to hack-saw a lens barrel. Once disassembled and the glass was removed, even a precision optical device, is a piece of metal. = What it used to be is only in your mind. On this moment you are dealing the work to create something new. What required here is a careful but very simple and boring push and pull work. 😀
Center photo : To the front lens, hack-sawed front barrel (which got 58mm filter screw ) was screwed back and a filter ring was bonded to its rear side with epoxy glue.
Photo right : The finished close-up lend was attached on the front of the Canon EF 100 mm Macro lens, which also has 58 mm filter size.
You might be wondering, while having macro lens already, and having a skill to use the lens in reverse etc. = all sorts of close-up trick, why do I need to have yet another close-up lens. —– well, all of my Macro lenses were down to the life-size, in other words, they take a picture of 36mm x 24mm is the closest. I simply wanted to close a bit more. (My attention tend to go rather small things. 🙂 )
—– And a real intention was to have much more exaggerated out of focus Bokhe. (I’m tired with clear images which is everywhere and too easy to come by today.)
Photo left : With this close-up lens, when the master lens, 100 mm Macro lens was set to the infinity, a small dole (36 mm tall) looks like this. (taken F 2.8)
Center Photo : With close-up lens, when the Master Macro lens was set to the life-size, it produces x2 larger image (dole’s head is 10mm). Have look the Bokhe in F 2.8 = max open). (This Bokhe is quite close to the Olympus Zuiko 50 mm F 2 Macro lens ! )
Photo right : A small beetle who happen to came to my room (it’s too hot these days, the window was fully open) this photo was taken with a bounced flash-light with F 11.
Unlike most of the Proxer, this home-made close-up lens has double lens chromatic structure, and fully coated. = Think, a cost of common cheap Proxer, and a Front lens which is the most crucial part of the lens structure in a zoom lens.
= Difference of quality is obvious. As you can see it in those sample photos.
A photo of a moth parched on the wall in my room, taken by EF 100 mm Macro with the handmade Proxer. = With F 2.8 the depth of focus is really shallow still, in the focused area, the image is very sharp.
This is a test shot of the screen of a Tablet (a photo of my umbrella). This close-up lens maintained very high quality of the image = Very even, corner to corner. And this is at F 2.8 ! (See details, by click it, and again)
Left photo is Macro lens alone and about 1/2 size. Right photo is, with close-up lens but Master lens was set to Infinity. Hence this combination can take photo from infinity to 1/1 and with this Proxer to x2. (By the way, Canon 5D mk-III has dreadful red-color cast when ISO was set to 6400. In AWB and in any setting. Though, at ISO 100 much better. = See the photos below)
(Photo left : 5D but Mk-II. Photo Right : The ISO setting was 100 = Much better !)(Those are hand-held photos = only for Color reference.) To be fair, I show you the photos by Nikon D810’s color in similar setting.
(Photo Left : Nikon D810 — ISO 3600 Photo Right : Same but ISO 100 Both with Micro Nikkor 55mm F3.5 — 1/2 )
Higher ISO setting mean, very low out-put of image sensor has to be amplified electronically to its limit. While amplifying to such extent, still linearity has to be maintained, while the out-put of each BGR may not having exactly the same character.
= Can of warm is opened. 🙂 In the same time, higher amplification also amplify the noise as well.
—– I admire and praise the people who managed it and brought the benefit of very high ISO setting even if it was not (yet) perfect.
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