Yoshizen's Blog

Birthdays Party

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There was a kids and grownup’s joint birthday party among the member, ex-member of the Dorkbot / Spacehijuckers.  Where it took place in the notorious Lime house Town Hall, where the lighting was notoriously awful pink light. 

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Made a situation even worse, I took pictures with a notorious homemade SZ lens and the 40 years old Nikon fisheye lens on Nikon D850.  And the result was what you can see.

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Somebody started to do a clay craft, try to show their creativity.  —– Following the foot step of Marcel de Champ I made a toy size urinary = great attempt (I think).

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SZ lens is about 100 mm F1.8 though, as it doesn’t have a clear focused point, it is not easy to use, especially under the dim pink light.  😀   (Of course, their  lighting can be set to neutral white though, if it was their choice I have to follow.   (Or, I should have brought own my light.) —– don’t worry it was just a party.     Happy Birthday !

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Stacked Lock Pin

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When I took those photos, I’ve used additional close-up rings on the SZ lens.

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Close-up rings I mentioned were those kind. (Though, this photo left was when I blogged about the lens from an Instamatic camera)  The Nikon mount SZ lens was attached by “Ai to EOS” adapter.   But the adapter stacked on the EOS Close-up ring.  So, I needed to hammer down the Lock pin to release the Ai adapter from the Close-up ring. (Photo right)  In fact I was lucky as I could access the pin —– if an EOS lens was stacked, (so, the pin was hidden inside) I needed to use a hacksaw to cut open the ring ( = the saw-dust might got inside of EOS lens and creates even further trouble etc etc.) 

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What I found was, the lock pin was too long ! = It protruded from the ring, hence, even the release-lever was pressed down, pin was still blocking the Ai adapter to rotate.(Photo left)    The pin needed to cut and make it short.  And to do this, both side and other side of the ring was covered by the masking tape first, to prevent an accidental touch of a file to make scratch. (Photo middle)  Then file-down the pin (Photo right), till the pin never protrude from the ring surface when it was pressed down. (check it like photo left again and again).

Close-up ring like this (not necessary red color = blue, gold etc all very colorful) was sold in Ebay a lots, mostly about £25 for set of 3 though, I found this for £15 = may be it was “the rejected seconds” rejected from other bender = somebody throw it away = then, others picked up for opportunity (= any business is the busyness in China = remember, they made a cooking oil from the sewer remain !)  Still I’m buying a lots of staffs (adapter ring kind) from  China/Ebay —– while keeping eyes on its work (I’m not asking them to be a perfect, but at least it wouldn’t harm others ! —– since, I’m a very generous Zen Buddhist.   Ha ha ha   😀  ) 

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It was a full moon !

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In the evening of the New year’s day, I noticed a moon behind the trees.  I thought, Oh, it might be a full moon, though, before it came to the center of the window, the sky got cloudy.

Yet still, you can see the unusual “Norwegian Moon rise Photos” in the Bentehaarstad Blog. —– not only that, you will find many many very interesting topics and the photos in her blog (click the links in the bottom)  I’m sure you will enjoy them.   🙂  

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Oxford Street, it WAS

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I know, I should have done this week ago.  Nevertheless, here the photos.

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Those window decorations were from Selfridges —– but I wasn’t so much impressed.

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(Strange green colorings in the shadow area was created by the Sony image processor. —– It IS a headache with this camera.)

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So, it WAS a so-called Xmas decoration. (Now there are only Sale, Sale signs)  😀 —– Most of the photos were taken by  the Homemade G9 lens.  (except last one which was by Sony 30mm F3.5 and the camera was Sony A7R)

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NZ Lens

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Before, I’ve made close-up lens out of a front element of the zoom lens.  So, I wanted to make something different from this Nikon zoom lens. (AF-S Nikkor 18~200 G ED)  Conveniently, the front element of this zoom lens extend  = it’s mean I don’t need to look for a focusing helicoid to use with this lens. (It’s already there.)  😀

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The matter of conversion was, to mount the separated front lens unit to a camera body.  There was a possibility to make the lens for Nikon mount. —– but on the end, I found that, unless I could trim off yet another 2.5mm from the lens barrel, it was only useable on Sony E mount.  The photo above was showing how the glue-up connection was made. (Aluminium ring was glued to the lens barrel first, then it was stick to the body mount.) (First plan was to mount the lens unit to a lens reverse adapter for Nikon though, as it couldn’t get an infinity focus, plan was changed to Sony = an adapter to use EOS lens to E-mount was chosen for its matching diameter.)

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So far this lens is the heaviest among my homemade lenses.  Looks a bit strange though, it would give an impression of some kind of professional gear, not a homemade mock-up.  😀

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Photo above are the test shots of this NZ (NZ for Nikon-Zoom) lens.  It looks the most murky, fuzziest image out of my many homemade lenses.  It was not a kind of light scattered halation — much more fundamental = light is not focused to single point (worse than spherical aberration and the image field was curved) —– Mind you, against its focal length (about 100mm) the diameter of this lens is 60mm =  it’s mean, 100mm lens brighter than F-2.  Well, unless it was a few thousand pounds lens, no designer would give any guaranty of the decent quality for such bright lens.—– If I could produce decent sharp image out of this lens, it is a fraud. 

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G9 Snapshot of the town

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Well, they may looks all same.  😀       The shot by a homemade G9 lens on Nikon D850.     A kind of mystery was that D850 recorded this lens as a 50mm F2 lens = it’s more or less correct  (F2.5 was more likely figure though) —– How they found this ? ? ? 

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G9 Lens

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I show you a yet another homemade lens : G9 Lens (with Nikon mount).   As a matter of fact, this lens appeared here before, in the other guise.

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Similar to G10 lens, G9 lens was a front element of the Canon’s G-series compact camera.  Before, the lens was made Nikon mount like an individual Macro lens to use on a bellows.  With an arrival of Nikon D850, I did a remake of the lens, while giving a focusing barrel.  Hopelessly fuzzy image need to work with the best camera which got the finest resolution.  😀

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From the previous Gaudy Lens’ experience, I took a lens barrel from Olympus film camera. (Photo above) And re-mounted the lens, deep inside of the barrel.  On the Nikon mount, this homemade lens can give a focus from infinity to 1/3 close-up.  The lens optical character was almost the same to G10 lens though, G9 has 50mm focal length, instead of 60mm on G10′. (yet makes very little difference)

Sky and Rose

This was the test shot.  The softness on a dry rose wasn’t too bad.  (It’s surprise to see even such fuzzy lens can show quite a small pattern of the tree.)

Only a trouble from D850 was the size of the each photo, 20Mb causing a bit of havoc. (Still, on this blog = they are cut down to only 200Kb or so —– Why use D850 ? ? ?)   

Further shot on G9 + D850 would come soon. 

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G10 Lens Test

This is much awaited G10 lens shot !  (Oh, really ?  Who did wait ?)

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It’s funny to see, are they the graffiti or the cover of the construction site ? (Good idea.)

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I’m not sure whether the subjects were hopeless or just the images ? ? ?   😀 

(You must be convinced that to show the image, fine quality of the lens is not important.)

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Snap the town by Mag lens (3)

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How weird ! ? ? ?  (of the image of Mag lens or my eyes ?) —– I know.   😀

(I’m going to further this with G10 lens etc — some may say, It’s an obsession.) ——– Oh, my my my, it’s snowing.

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Snap the Town by Mag lens (2)

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Some more snap shot by a homemade So-called Mag Lens.

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With your annoyance even more to come.  😀 

PS :  By the way, I’m editing this blog on Toshiba Laptop with W-XP and Google Picasa —– though, when I see the same on iPad, the images looks darker and the color seems more saturated (in other words,”Picture looks more exaggerated”)  They were displayed differently on each device by device but my intention was not so dark.   Murky doesn’t necessary looks gloomy.  😀

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