Yoshizen's Blog

Pla (B) Lens

Pla Lens (A) was somewhat a kind of flop in my try. —– Then, Zen wouldn’t give up. 😀 Why not to try with a different lens. Anyway, the luck is in a chance encounter (with a suitable character lens)

A lens I found was a single meniscus glass lens which can make the image like this photo —– of course, this lens could be mounted in the centre of much lager lens though, such large lens tend to have rather longer focal length etc etc. So, I decided to make a hole in the centre of this lens and put other one-time use camera lens in that hole. It took only 5 min’ when I made a hole in that plastic magnifier lens, but this time I had to drill a hole into a hard glass lens. If I push too hard, the glass will chip or worse clack altogether. = slow slowly work took half day.

The one-time use camera lens was pretty small. (I used only front lens ) Which makes the image like this. ( = unlike you expected, the centre lens produce the bokeh, and peripheral lens would creates detailed image. )

So, the concentric double lens was mounted on the camera = AND suprisingly, the image came out was rather normal. = the image was just fuzzy mediocre lens kind. (The size of centre lens was 6mm, Outer lens was 14mm which has 4.4 times larger area = in exposure level, the effect of 6mm lens was too small = negligible) (Yet still, the fuzziness wasn’t too bad even though it was far less than what I expected)

I need to get better subject —– image was somewhat similar to the Godo lens.

The fuzzy lens suite for the flower photo. Nobody complain. 😀

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5 Responses

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  1. Lemony said, on January 18, 2020 at 16:07

    Nice! 🙂

  2. Simple Arithmetic | Yoshizen's Blog said, on January 20, 2020 at 14:55

    […] the previous post, I mentioned the strength of the image and the size of the lens. When the inside-lens was 6mm and […]

  3. Early Magnolia 2020 | Yoshizen's Blog said, on February 24, 2020 at 17:48

    […] following three pictures were taken by the other homemade lens “Pla-B” Lens” —– though, the sky was too dull, I’m not happy with the […]

  4. Cherry 2020 | Yoshizen's Blog said, on March 9, 2020 at 21:24

    […] Who is Yoshizen, Zen in Action by yoshizen on March 9, 2020 This photo was taken by Pla-B lens on NZ-7 by Pla-B too By Nikkor 50mm F1.2 on Sony A7R4 By Tamron SP 90mm on Sony A7R4 By Mag lens […]


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