Yoshizen's Blog

Walk with Godo lens

Among my homemade lens, being as if it was almost ordinary lens, Godo lens is the most remarkable lens. There was no eccentric feature like 1/2, 1/4 lens kind but two ordinary unknown origins lens put together. (yet, one of them came from my friend Gordon = hence Godo lens ) And the lens happened to produce quite normal image (if not a lots of halation) together with quite nice softness. On top of that, thanks to a Chinese helicoid ring, good convenience of close up use.

I went back to the so-called Perpetual Cherry Tree and found that the area was in a construction site. (Tree was still there and seems flowering though)

I’m not sure whether they are bamboo or reed ?
I like a natural looks quality of this macro. (Too sharp image of most of macro makes the flower looks like an animal body parts) – – – Unless the one was a forensic scientist, we may not like to see too sharp detailed flower parts.

For the cost almost nothing homemade lens, I would say, this is the good lens.


Canberwell Cherry by Other Lenses


You may think, the camera was rotated but this swirly bokeh was the lens’ own aberration.


Those two were by Helicoid-B lens 



And those two were by G9 lens



Those photos above were by G10 lens


What I don’t like about this camera was, its AWB (White Balance) changes frame to frame.


And those two were by SZ lens

—– The hardest part in those photography was, to sort the photos without mix-up, not mention the trouble to capture them while holding the camera high above the head and shoot by guess-work. (You know, the Photography is a hard work)   😀  


Camberwell Cherry by NZ Lens


NZWhile passing through by bus, I noticed that a Cherry tree in a corner of the Green was in full bloom.  So, I went back there with my camera together with some homemade lenses. 


(In this photo the red cast seemed to be created by the camera’s image processor — may be non genuine lens may not work well with this camera (Sony A7R)

Cherry itself seemed to be a primitive wild cherry, we called Yama-zakura (Mountain Cherry) in Japan, not the well cultivated Kan-zakura (Winter Cherry), nevertheless Cherry flower is the Cherry flower. (May be from the mountain standard, the climate in the town was warm enough to open their flowers.)


(The photo above left was the other tree nearby — this one seems a Plum flower)

The photos in here were taken by the lens called (or, I named) NZ lens.  It was a Nikon Zoom lens which I utilized its front element, and made it as an individual lens. (Works as a 90 mm F1.6 and able to focus down to 45 cm)  Its macro quality was not too bad though, it got a strong aberration and together with its “Fully open” F1.6 aperture (Think, 90 mm F1.6 is pretty big), it’s creates “Fantastic” fuzzy images like those top photos.  They were shot while using 10 mm extension ring.  And this fuzziness IS very unusual = it looks like a halo in the highlight which spread around still, the details and the contrast in highlight was maintained. = I never seen the image like this.   (If you agree with it.  😀 )  


How silly !



While checking my own post (I need = notorious trouble of mis-speling), I realized “Wait a moment, why did I need to make a screen shot of Aster flower, while having such fuzzy pinhole — How silly”

Whether you believe or not, I’ve completely forgotten the existence of Double Density Pinhole.  I should insist, this was not a demented memory but the Zen No-mind.   🙂   —– Zen only deals with the things on front = if not on front, it is not exists, since the mind is not clinging the No-existent things.

Anyway, to find the “Pinhole Machine” for Sony A7  and  For Nikon (+ adapter), and had the shot of Aster with ISO 25600 setting.  (More artefact noise would appear with longer exposure = dark evening)


The left photo was a Double density Pinhole. — Nikon type Pinhole machine has Multiple Pinhole as well. (Photo right)


They are the compalison = Pinhole machine for Sony A7 —– As the pinhole is much closer to the sensor, the images are much wider and the color on the edge is sifted to magenta. (Left is DD, and the right was mono-pinhole though, not much present fuzzy effect.



Pinhole sounds simple and easy to make though, — because it IS such small, very difficult to controle = very difficult to replicate the same effect.



So, I have to be contented to have this fuzziness on Autumn Color.  🙂


Lens Test on Cherry and Plum Blossom


Those photos were taken a while ago, the same day I took pictures of Daffodils.

(After this, there must be much better full bloom somewhere else though.  🙂 )

(photo above was taken by a Canon Fisheye lens)


And the following photos were taken by the Two Element Homemade Lens above.



The beauty of this lens was that there is no focus  😀   (Other than this lens,

rest of the lenses were used with the Tilting Macro Bellows for focus.)


And the following photos were taken by a lens originally came from a Canon

compact camera G9 = it was their zoom’s front element.

The lens was Epoxy glued onto a lens mount ring and a filter ring was fixed too.  




Unlike first two photos, those photos were (I think) Plum tree.




Next was a front element of a Zoom lens  (I don’t remember where it’s came from,

Canon or Sigma ?)  — The lens was fixed in a similar way to the other homemade lens.


Front element itself couldn’t eliminate the aberration. —– but this one showed

very strong Coma aberration — (if not a camera shake).  In most of the case,

good softness of the image was created by the Spherical  aberration  

= so, Coma aberration was not desirable here.


Strangely, this Coma aberration appeared somewhat in middle distance.  


And not much so on the close-up.


This one above showed no Coma aberration but the following one did  ? ? ?



I need to have more test.


Last one here came from a cheap Wide-Converter for a compact camera.

It got quite big diameter — hence the effective F-aperture is F1.6 !





I like the images from this lens though —– strangely, despite full open F1.6,

the back image was not necessary out of focus or dissolved into big  Bokeh.  



Anyhow, each lens got its own character = pros and cons.  🙂



Last photo above was again by the same Fisheye lens. 


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