Yoshizen's Blog

Banksy’s Art !

There was an auction in the Southaby in London.  A painting (or splayed stencil) of Banksy was said to be sold for a £ million.  Then, at once, the picture was shredded itself by a built-in shredder. 

—– there always somebody, much cooler person in this world ! 

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Screen shot by Soft lens (2)

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I found this pretty image in the net.  The original was much sharper, rather normal picture.  When I took screen copy using my homemade Mag lens, in order to avoid a moire, I gave a bit of off-focus.  It was a character of the Mag Lens, when it was off focused, the image suddenly increases the aberration thus, the image become nice soft picture.

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This image was not as much as off focused like the first picture. (Just enough not to see the screen pixel, hence neither moire)

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Then give a bit more off-focus.  —– Isn’t this picture looks more sexy ?  (Shame, I was not the photographer to see the lotus flower in the first place)

I think, now you were convinced to appreciate soft image !

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Mug shot (2)

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Yet another collection of Mag lens images taken around the Oxford street, London.

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Sony A7R’s AWB tend to give brownish adjustment when it has too much blue sky for alien lens.

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Strangely this lens is pretty good to create 19thC townscape paintings like image.  May be Sony’s brownish AWB was contributing to this tendency too.

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Only a trouble of this Mag lens is, its effect is sometime unpredictable.  😀

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Mug shot (1)

I’m not having any project or mission with my Mag lens still, I’ve been carrying around this lens the most.  Because this one is probably the most typical of my fuzzy homemade lens, together with a good capability of close-up shot (since its used be a magnifier.)  And to explain what and why this lens, often I demonstrate the effect of the lens by taking picture of the person.   Naturally I got a collection of portrait of those people I met in the town.

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The closer the subject, the better the image quality, still it keeps fuzziness.  So, where ever I click, the product showed my fingerprint. =  That’s I like. —– When people take picture, the result looks all same.  Since, shoot same subject and use more or less the same camera = inevitably the result became same.  That is not a kind I was born to do.  = If I make something, its got to be totally unique, and nobody ever conceived kind (so, it should come to the top of google list, such as “yoshi Zappa” “Art figure St.lucia” etc ) —– (Why people are eager to sell their name is, nothing other than the name makes the difference of the work.) —– it’s hard to be an artist.

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Need lens ?

Cyriacus & Julitta church 11

(Photo above by Gordon Cooper, Church Window, July 2018)

My friend cinematographer Gordon sent me the Photos he took on his holiday in the Cornwall.

While rest of us has been barely surviving in this heatwave, what a lucky guy, Gordon.  He sent photos while saying “Who need the lens” = In deed the photos were taken by the Pinhole which I made for him. —– Yes, exactly like us living without cloths, the camera can take a photo naked = without the lens.  With Pinhole.  That’s true.  I’ve been forgotten the Pinhole —– so, take them out and took some photos around.

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(What I don’t like Sony A7R is, their AWB / color balance fluctuates a lot)

I got enough variety of Pinhole = this one was even fuzzier “Concentric Double Density Pinhole” = a smaller Pinhole inside of the other pinhole = create a void inside of yet another void = how can we ?.  (This is a physical and the philosophical problem.   😀 )

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The advantage of the Pinhole is, (as long as the camera can co-op) we can take photo without bothering the focus. (= in any distance, image would have the same fuzziness which depend on the size of the hole)

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So, the Pinhole convert the image into a constant pattern, almost like a paper cut-out.

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And this is the comparison.  Those three photos were not Pinhole but by the Mag lens. Lens will make one focus = other than this distance, the image will be out of focus, which effect gives a feeling of the depth / three dimension.

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This Mag lens image has the strong effect of the aberration together with rather messy out of focus bokeh.

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On this photo, right amount of out of focus bokeh is giving a nice softness —– if this one was by the Pinhole, it would become rather messy image. = Pinhole is not necessary suit for all the subject. (better suit for bold pattern and that kind of image = in other words, for the some subjects, optical lens would make better image.  Needs lens !

Vest Pocket image on the 6×7 camera

Vest'P6x7(1)-A09A8379In the previous post, you might have seen the Vest Pocket lens’ image captured by a 35mm full size digital camera.  Though, the original size of the Vest Pocket camera was 6×9 (43mm x 65mm exact) —– so that, the image only on the cropped center wouldn’t show the full character of this 100 years old lens. —– (Strangely to say, don’t you agree this picture above looks like 100 years, even 200 years old painting ?)  

—– The fact, you must be noted is, 100 years ago then, the user of Vest Pocket camera seeing their picture contact printed on 6×9, card size B/W print.  Today’s reader of this blog can see the picture’s detail / sharpness easily enlarged, though there was no such luxury in old days = people just accept the picture made by the camera (with no focus adjustment).  As long as the picture showed the face looks like your boy, it was a good picture ! 

A funny story was,— there was a Photo-club in Japan,  namely “Vest Pocket camera appreciation club” (Ves-tan Club”/ べス単クラブ — Ves-tan stands, Single lens Vest Pocket ) of which the photo enthusiasts of the photo image made by the Vest Pocket camera was associated together.  And among the members, there was a special practice = use the camera while lens’ front hood which restricts the aperture smaller was removed (— See the previous post =  Lens was originally F6.6 but with the front hood makes it to F11). So, they appreciated the images with soft bokeh by the spherical aberration, the most.  In today’s standard, they might be branded “Otaku”  (It was almost like a religion, same to prefer the images made by the Canon or Leica lens than the Nikon, saying that the Canon shows the atmosphere / or taste (aji / 味) more, but the Nikon lens pick-up just clinical flaw of the skin.  —– mind you, this was the story of 40, 50 years ago.   😀 )  

Vest'P6x7(2)--004I mounted the lens on the Pentax 6×7 body using a camera’s body cap and tested its image character.  (You may say, 6×7 is not 6×9 though, don’t be too fanatic = it wouldn’t kill you anyway) 

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(In order to mount the Lens unit to the body cap, an aluminium ring was cut out.  Because the lens has to be very close to the camera body, there was no space to put a focusing mechanism.  So that, the close focused image was made by adding an extension ring. )

Vest'P6x7(4)-A09A8359So, I took some photos on the 15 years old,  Fuji, Provia  ISO400 film — but exposed as ISO160 as I anticipated the film’s loss of sensitivity in time. — (Since, the lens was set to maximum F-aperture (F6.6) the image was pretty fuzzy on the 6×7 Pentax view finder too = rather difficult to see the definitive image.)

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(Since the 100 years old single grass lens has no coating, image has a lot of halation as well.)

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(Fuzzyness was created by not only its out of focus bokeh but by its aberration too.)

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(In here you can see a lot of bokeh by the spherical aberration.= unlike the intentionally created bokeh of Helicoid Lens (A) or (B) kind, Vest Pocket lens’ fuzzyness looks more natural.)

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So the painterly effect of this Vest Pocket lens looks rather subtle and looks natural. And the image has more atmosphere which gives more depth to the image too.  A depth of its image was induced by the emotional resonence (something like = I’ve seen this long time ago), not from the detailed data which will talk to the intellectual brain —– in fact, too much data in the image distract an emotional response, exactly like a noise in the music.

(Which the members of the “Ves-tan Club” most appreciated.)

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Vest Pocket Lens on A7R

Vest'P(1)-DSC09764On here, the images of Vest Pocket lens from the field test.  (Give a close eyes to this photo and see how the details and rich tones are there ! —– by the way, the image looks a bit more greenish on iPad screen.)

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—– If the image looks fuzzy, the lens was fully open (F6.6).  (But mind you, the original Vest Pocket camera’s image was 6×9, therefore we are only seeing its cropped center here.)

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(They are the sample)   Left = F6.6 / Right = F11) — Pantograph was fully extended for close up.

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(Amazingly sharp image together with nice halation of spherical aberration from the F6.6 Vest Pocket lens ! )

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Vp

(This photo above, look the cobbles and see their blurred pattern —– but, on the small contact print of card-size image, who would notice it ? )

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Well, Vest Pocket lens on the Sony A7R was the camera who took those photos though, behind of those, there were many more minutely blurred photos, seemed to be caused by the wobbly lens structure.  Otherwise, some photos were amazingly sharp, considering that they came from such old single glass lens !  (And it would rise a very serious question, that is, the great effort the manufacturer spending to create 10, 20 elements lenses using ED glass etc, what sort of practical significance was made ? —– of course, unless otherwise, there couldn’t be such as 14mm F1.8 lens or 18mm~400mm Zoom etc etc still, —– ? )     In reality, often, those expensive technical samples were made for demonstration purpose and made only 100 or so to display in their showroom.  In contrast to the millions of  18~55mm plastic kit lens.  Funny fact was, even after the people was made to believe that “the Larger the Better” myth suddenly changed into iPhone camera. —– It indicates that, so-called fine sharp image might be just a formality nobody actually bother. )

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Kodak Vest Pocket Camera

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  (Photo left = Vest Pocket A-127 camera.    Photo middle = Insert + Lens unit was pushed out. The round cup on the front panel is the Hood ring removed from the lens front.  Photo right = the half of the Vest Pocket camera was attached on the Sony A7R body)

Probably the most iconic vintage camera must be the Kodak A-127 Vest Pocket Camera.  Among the thousands of cameras, this camera was designed on the almost revolutionary “Cut the corner” philosophy.  On the surface, you might think that this camera was a toy though, actually the camera was 6×9 medium format (43mm x 65mm exact).  In today’s sense, if the camera was a medium format, it could produce quit high-resolution high quality picture —– but, you were wrong.  Virtually all the user of this camera had only seen their picture on a tiny 6×9 size contact print.  Think, how much a name-card size tiny picture could show the details ?  Imagine, to make a picture of photo-booth instant print, how many pixel was needed ?  (I guess, Kodak must have had many consumer test and found “good enough” compromise.)  The size of the picture to carry in a wallet (to show his baby or give his picture) IS 6×9 = card size.  To make 6×9 photo, lens focal length got to be at least 80 mm, and the size of the lens should be about 10mm.  So, on this Vest Pocket camera, the single glass lens was 12mm diameter though, a ring or hood which is restricting the aperture to 7.3mm was placed on front of the lens. (It’s mean, the lens was F6.6 but with the ring, F11. —– with this rather small aperture, a kind of pan-focus = focus-free was created = a bit of out focus may not to be a matter in a small print. ( = hence camera has no focus control) 

So the structure was designed in the same minimalist approach.   The camera consists  1) Outer shell    2) Insert with film gate   3) Lens / Shutter unit and the bellows to connect  Lens unit to Insert and the supporting pantograph   4) Bottom cover —– other than in the Shutter unit, very few screw was used, hence the Insert will be slide out with a simple push  (photo above middle)  Technically, Lens unit and the Insert, connected by the bellows and the pantograph can be seen as the Lens with focusing mechanism = it’s mean, just place the Lens unit / Insert to the front of a digital camera, we can make the pictures of Kodak Vest Pocket Lens, (which I did) — provided,  pantograph should be press-down to the correct point to have an image in focus. (photo right)

K-vest  F'open /  F13 ?The test shot showed rather promising results. (But shoot with an extreme  care ! —– Photo above left = the iris of the lens (without front ring) was fully open = F6.6.    The next, with the front ring which makes F11  (Photo right ) —– F6.6 showed nice softness and when it was stopped down, the image became more solid ! —–  though, the field test showed the other trouble of this optics —– because of not very solid lens support structure, they are pretty susceptive to the vibration =  image get easy to blur = considering the shutter shock made by the small lens shutter (when it was on the Vest Pocket) and the Square shutter in the A7R’s body, the effect seemed to be completely different, especially if there was a funny resonance on the wobbly pantograph  frame. So, I’ll show you the field test shot on the next post.

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Brilliant London by the same Mag Lens

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When it was bright day, my Mag Lens (which got strongest halation among my homemade lens) would produce just like a blindingly bright image.

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And I happen to encounter a kind of health campaign appearing to the pensioner.

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Funny paradox was that the people coming out to shout were very healthy talkative people.

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Funny character of  Mag Lens is, under certain condition, it produces rather solid image.

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So, the difference = brilliant or gloomy was, which kind of the day, I go out.    😀

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Gloomy London = Seen by Mag Lens

Some pictures of the London = According to the Mag Lens view.

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When the image is murky and dark, it will be seen as Gloomy, and this is it.   And it happen to be quite close to my own view as well. (Zennists are not so optimists though they are not necessary having a gloomy life = simply it is just not funny.  —– I can’t understand why people excite about kicking the ball or the ball on the line ?  —– What that ball to do with the person ?   We are nothing to do with the ball, do we ?    😀 )

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Mag Lens doesn’t necessary make the things gloomy.  The image was just murky = hence if it was dark days, it become awfully gloomy. (I’ll show you the opposite case in the next post.)   😀

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