Lens Design Part 5!
column
lens
![](https://vintageshopjapan.com/wp-content/uploads/2022/12/ai-1.png)
at first
I’m sorry
Because we can’t speak english
I am using DeepL translate, so it may be a strange sentence,
but I would like you to understand
Thank you
It has become a regular part of the
Lens Design Series.
of vintage lenses
I found a new discovery in the focusing ring series
I would like to write about it here.
I will comparison using two lenses sell by our company Vintage Shop Japan Inc.
Asahi Pentax Super Multi Coated TAKUMAR 35mm f/3.5
![](http://vintageshopjapan.com/jp/wp-content/uploads/2022/12/a1-381x360.jpg)
Click here to see the column of cleaning work
Asahi Pentax’s focusing ring design is
Because the material is hard like die-cast
The design is machined.
It is cut in one direction.
![](http://vintageshopjapan.com/jp/wp-content/uploads/2022/12/C-640x290.png)
![](http://vintageshopjapan.com/jp/wp-content/uploads/2022/12/C1-640x317.png)
Here is the other lens.
Minolta AUTO ROKKOR-PF 55mm f/1.8
![](http://vintageshopjapan.com/jp/wp-content/uploads/2022/12/m1-419x360.jpg)
Click here to see the column of cleaning work
Minolta lenses are also
The material of the focus ring is
It looks like it is made of die-cast material.
![](http://vintageshopjapan.com/jp/wp-content/uploads/2022/12/E-640x281.png)
![](http://vintageshopjapan.com/jp/wp-content/uploads/2022/12/E2-640x300.png)
Asahi Pentax and Minolta
They look the same, but if you look closely, you can see the differences.
![](http://vintageshopjapan.com/wp-content/uploads/2022/12/e1.png)
The design of the cut and the number of corners of
the slit were different.
Vintage Lenses.
If you look at the design of a vintage lens
you will find various discoveries.
I will write about my discoveries as soon as I find them.
In addition to the products mentioned above, we also sell
vintage cameras and lenses.
Please visit the following URL.
Cameras & Lenses
Animation Goods
Acoustics and others
Vintage Shop Japan Inc. Official Website
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Writer Takashi Okumura