Close-up Lens on EF-Macro Lens
Well, those top two photos were taken by Canon EF Macro 100mm F2.8 Lens alone.
This Macro lens has internal focus system and it will be focused down to the life-size.
For general macro work, it is convenient to use though, for me, life-size is often just
not close enough. So that I specially made additional Proxer / Close-up lens my self.
As I detailed in the post, By using the Proxer, the Lens can close to x2 size, and
in addition, it creates almost phenomenal out-of-focus Bokhe.
The Bokhe created by this additional lens looks almost like Air-blush Graphic work.
Still, since this Proxer was made out of the front element of a Zoom Lens, it got double
lens Achromatic construction, no Chromatic aberration was appeared and the focused
image is quite sharp, corner to corner, even when the lens aperture was fully open.
All those photos, except top two, F-aperture was set to F2.8 and the Camera was
set to AV mode. Auto focus does work though, as the nature of this kind of
close-up work, I used manual focus.
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Royal Baby-Boy’s relation to Beyonce ! ?
There was a joky talking of the DJ in BBC Radio-1 mentioning that a researcher found
the Royal baby-boy (born 16:24 today) is distantly related to a singer Beyonce,
as 23rd Cousin twice removed. —– I found a likely source in this link —-
http://www.dailytelegraph.com.au/entertainment/celebrity/royal-baby-will-be-distantly-
related-to-beyonce-jayz-brad-and-angelina/story-fni0b8dv-1226676989090
I don’t have enough knowledge how so-called family-tree was traced, therefore I have no idea
what this “23rd Cousin twice removed” graphically mean.
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There was a hype many years ago about “ 6-Degree of Separation” —– How we are
connected each other where ever we are in this world.
Sound somewhat miraculous story though, (in fact I never read the story or seen a film,
so that I do have no idea what sort of theory or research behind)
have you ever thought about this matter by yourself ?
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It was a sort of the observations after “Facebook” that we may connected to somebody completely
out of our knowledge if we traced the indirect connection next by next.
Such as I have rather exotic friends of African, Arabic etc etc. and of course each of those friend has
their own friends or relatives in their society
= in effect, my connection spread to those countries as well.
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So, just think about, how many friend or relatives you got ? I guess it is pretty safe to
say 100, but if we include acquaintances and far relatives, it could be well over 1000.
—– Assuming, you are connected to 100 people, and all those people has their own 100,
but half of the people are overlapping = it’s mean, through 100 direct connection, it
spread to 100×50 = 5000 indirectly.
And those 5000 could connected to further 50 each, and so on.
So, just have a multiplication — 100x50x50x50x50x50 as of the 6-degree.
You will find the total number is well over the whole population in the world.
If all the world population was included in this link, no wonder, no-one can be alone.
It is a natural situation without resorting such FANCY theory. 😀
Anybody could be trace back to anybody in the world. —– That’s a theory though,
asking “Do you know Yoshi, or could you ask your friends ?” and extend this to whole
world population, how long would it takes time, let alone the cost of communication.
= utterly useless dreamy theory.
6-Degree mean whole world population = of course if you ask whole world,
at least 100 people knows Yoshi. But Who can do it ? 😀 😀
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If you DO think yourself, you will realize, that there is no such miraculous theory.
—– Any how, a scientist said to be traced back all the European population to the original
7 ancestors who came and settled to southern Europe. Since then, those 7 families might
have inter married, thence they are all related. So, there couldn’t be anything to surprise
an American singer has blood connection to English who was happen to be Royal.
(There was even a story, that English royal blood has some relation to Indian.)
Don’t be deflected by fanciful story and waste the time in useless gossip.
Don’t believe what others say, think yourself.
As Lord Buddha said. 🙂
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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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Junk Lens — How to recycle ?
After digital revolution, analogue age old lenses become almost a junk.
Simply, the camera and the lens today are too different from their predecessor.
As the lens has to work with the camera which got so many functions therefore
the lens also needs to function such as auto focus, electronically position controlled
F-aperture, distance-coded focus not mention high zoom ratio, of which the zoom
position was also electronically coded. (Those code were used to control Flash-light)
= In order to deal with all those electronics, the lens having its own microchip and
able to communicate with camera’s main CPU.
Without having those electronics, lens couldn’t be used on the camera —– except
Canon EOS (It can take any lens include a Pinhole in AV-Mode, of course with
manual mode as well. — But, Nikon couldn’t make even a single image out of pinhole,
without giving quite complicated procedure to set-up the camera side. )
Though, don’t misunderstand, even today, the optics is still optics, it works on the
same principal, hence if you get a convex lens and concave lens scavenged out of old
camera lens, it would make a telescope for a kids to experiment. Or use them to project
an image or focus LED light etc etc.
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The lens design has also changed a lot such as the use of aspherical lens (in fact most
of them are a so-called Compound lens, aspherically moulded plastic was stacked on
a glass lens) —– nevertheless, I admit, today’s lens is very well designed in deed.
(Though, why they became so big and heavy ? — considering, how compact camera
became so small and light, while able to take more or less the same picture. 😀 )
In those aspects, may be there is no point to give a damn to the old lens though, still,
such as F-aperture diaphragm has changed almost nothing (only driving mechanism
may have changed to motor etc. And the front lens is still, good achromatic lens.
Not mention the focusing helicoid which is impossible to make by ourselves, still
having lots of use, not only in the photography.
= We can scavenge a lots out of such old lens. —– As a matter of fact, good old
non-plastic lens is far easier to disassemble and Re-use. (Plastic built lenses were
NOT designed to be serviced as they were built by snap fit or heat-weld.)
(Lens above is a Canon TV lens, it must had a price of many thousands of pounds. )
The best thing is, we can find those old lens in a camera shop’s junk box,
with a price of couple of pounds, if not free.
To disassemble those lens, there may not need to have more than small
+ AND – screw drivers. (but need to use the brain a lot = it is a puzzling game)
In coming posts, I’ll show you what I’m going to do with those “Components”
saved from old lens.
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Flying Angel — Wire Figure
This is my Angel, yet another wire-figure I made on 2007. (So, those photos were
taken by that old Kodak camera, and the photos were clopped —- hence, pretty low
quality photos) But not PSed, the figure was really in the air (hanged from the tree).
When I brought this to a gathering of Dorkbot, the figure made a well known artist
Anne Bean, frozen 5 min—– ( I was frightened, such good artist can memorize all the
structure and able to make identical copy 🙂 )
Strangely you may found, this lady has no neck. Her right hand holding the head. 🙂
Wire used was 1.6mm garden wire, and I was planned to make it x5 size, it’s mean
life-size, by 8mm copper tube though, I realized that, if I made this in my room,
I can’t take it out 😀
—– One day, when I got big studio, I’ll do it (though, seemingly never happen 😀 )
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Development of Foetus
Well, I meant not a baby but wire-Figure in Foetus Posture.
Unlike a body posture spreading limbs, Foetus posture might be more awkward to
make sense, because it might become just like a pill of wire. —– So, I tested how it
could be made simple and still convincingly looks like a human-figure. — The first
study above was made its back and the legs separately, so each did look “likely” shape.
(I found, in Foetus posture, it doesn’t need to have a head —- We think head was
buried between the shoulder. 🙂 )
Then, the second attempt was how to reconcile the joint of upper-body and the legs.
—– This one was not successful or smart enough though.
The head was accommodated in the third model.
Looks not yet streamlined enough —– though,
so far this is the final piece called Foetus.
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Drawing with Invisible Force
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This is a wonderful watercolour drawing by Elene Caravela, which I found in her blog:
elenacaravela.wordpress.com (Quality sake, please see her Original Drawing there)
Elena has been one of the most prolific artist and the blogger who showed Watercolors, Oil paintings,
Photographs = very wide coverage of genre in very high quality work.
In the past year or so, I always impressed, even amazed by her drawings,
how her almost whimsical free blush strokes able to capture such vivid and also
realistic human figure. —– What is the secret of her creation ?
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To my comment and a notice that I want to re-blog —– she gave me her reply ;
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I’d be flattered Yoshi. I guess, I plan in my head a bit to make sure the figure will fit on the page
(mentally count out head size both vertically and horizontally, but really loosely).
Then see the movement on the spine and extremities. The force takes over.
Sometimes it works, sometimes it doesn’t 🙂
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—– As she said, she might have given some consideration to the size of the
head etc. = here the thinking stops, then “the Force takes over”
To see her blush work, there is no hesitation, its quick movement some times creates even
the paint splash or drip. (in another piece) = blush and the hand moves perfectly spontaneous.
So, —— in such spontaneous blush stroke, look again the drawing above, = one blush stroke
perfectly depicted the body-line to the round bottom. — I guess, here not only the
direction of the blush movement, also it involved certain control of the pressure to the blush
and its twists, which determine the width of the line. (though, only a guess — I know the way how
to use curving chisels but not necessary the drawing blush 🙂 ) — all in the moment of one stroke!
This phenomenal control was done by the invisible Force, not possible by a human thinking.
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Spontaneity mean, there is no intentional control or thinking. —– This is nothing other than what
Lord Buddha taught = the state of Selfless / Mushin, therefore “The Force takes over”
= this Force is what Buddhists call the Dharma ! (or the Rules of the Universe)
The moment when the blush and the subject meet, the tension and the heat created
on that moment, drives the blush wild. = and creates dynamic impressive piece.
(consideration or useless thinking such as what others or market may think etc. spoil the tension
and the heat, hence makes the piece dull)
But Elena got perfect freedom not bothered by useless thinking, and I guess, when her blush was
driven by the Force, even she, herself may not able to control = blush got its own mind and move
almost automatically. That is how she creates such impressive work = It’s wild, as it was driven
by the Force of artistic nature. 🙂 That is what the art of Elena stands out.
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By the way, don’t get me wrong, I’m not implying Elena’s work is anything to do with Buddhism.
Far from it, the state of Selflessness is one of the inherent human psychological nature.
Buddhism applied it to more general aspects of the life. Not only the superb blush work, we can
achieve the superb life with it. = Quite similar to that Love is not because of the Christianity, but
they applied it to much deeper spiritual level.
Zen Buddhism pushed the potential of Selflessness to its extremities.
—– That is what the Zen Buddhism is.
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Elena has acquired this state of mind while drawing / practicing again and again,
probably tens of the thousands of times. Hence, the Buddhism using the same way of
the approach = practice it again and again until the hand started to move automatically.
= Hand moves automatic = without thinking = without self conscious = Selflessness.
In the Selflessness, invisible force takes over. This force is the Dharma. = Under
the control of the Dharma, phenomenal freedom and the result can be achieved.
This is how the Selflessness in the Zen Buddhism works.
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Handmade Flash System (3) — Macro Flash
In the close-up photography, the exposure was a headache before the TTL metering was invented. Still, the use of flash-light remained yet another headache —– until TTL auto flash-light was developed. (When the lens was close-focused, effective F-aperture changes logarithmically (= life-size shot darken 2 F-stop, unless the lens was designed using internal flow focusing system) and the flash-light intensity changes in distance also logarithmically ( = brightness on 0.5m is x4 brighter than it was in 1m distance) Yet still, in practice, even those TTL flash-light was not necessary convenient to use for the close-ups, as they were not designed to be used in such close distance.
In the other hand, lens has been well advanced to have even extreme close-up, almost to the lens front though, in such close-up position, the big lens front block the light to the very subject.
= flash head has to be positioned, close to the subject.
[]As a matter of fact, close-up photography and its equipments are the cash-cow of the camera manufacturer. = The most of the people who “need” to do the close-up photography is the public institutes, doing scientific research or even police forensic photography etc.
Therefore, they pay the equipments what they were asked —– anyhow it’s not their money. (hence, they are so expensive, and creating so much profit.)
And in those scientific photographic front, the use of flash-light was much more preffered over other light-source such as tungsten light, because of the flash-light has no heat problem, and the xenon flash-light contain much more UV or near UV light which is often used for fluorescent effect of certain chemical, hence extremely important for forensic and medical photography.
[]But for a poor man on the street, those Macro Light from camera manufacturer is too expensive, even though, structurally they are not so special. =
So here, yet again, comes the same motto, WHY NOT make it ourselves.
(Though, here is a very strong WARNING ! Electronic flash is a Hi-Voltage lethal device, even if it was powered by batteries, some of the parts, inside are having more than 300V. And in operation, when it was triggered, some of the lines carries 3~4000V ! = Unless, you are very experienced in Hi-voltage circuit, I wouldn’t recommend you even open the housing of flash.
—– before handle, the capacitors has to be completely discharged through 1K, 5W register) ( I got many experiences of repairing studio-type flash, up to 5000WS, which discharges 1200V and handmade 600WS studio flash for my use. —– I’ll show it to you in another post.)
[]This macro flash was made with an easiest straight approach.
Just take the flash-head out and devised it to mount on the lens front that all.
Still, it rotates (and fixed) any position on front of the lens, and the head also rotates in two axis hence it enable the flash-head aiming to the subject, or rotate it upward and a paper stack to its head would make more natural diffused light as well.
The base of this modification was Nikon SB18 hence it works perfect as a TTL Macro Flash with old F3, FEII, F801 etc. etc. though, as Nikon changed the design of their flash control system in their digital camera, this one doesn’t work with such as latest D810.(so, the photo above may be misleading. 😉 ) May be I should make the same using their latest and cheapest flash. (in fact, structure of the flash head is all same, only 3 cables connected to the tube, I can connect this head even to a Canon flash.) ( So that, the photo above is just an illustration of mechanically “how it was constructed” and no sample photo of how this Macro Light works 😉 )
[]Funny story of this was, when I showed this to the Nikon (UK), their boss Mr. Obara was annoying so much and said “How come, you buy such cheap flash!” but their engineer was burst into a laughing “Yes, this is what all about the Macro Flash in deed” and said “You got far better skill than our prototyping engineer” —– though, it was 1986, just before my trouble started. Then I gave-up my photography, and most of my possessions were gone to storage if not sold, hence, there was even a single photo done by this flash ever existed. So that, when I found this in the bottom of cartoon box, I felt a bit of amazement and the sadness. —– One’s life has all sorts of twist and turns in deed.
(Yet still, I’m glad, my fun loving creativity and the skill on my hand didn’t die with it.)
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