Maintenance Report

Lens design part 6!



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’s been a while since we’ve had a series of discoveries in lens design!

Today, we have discovered a unique feature in lens design, and we will be writing about it in this column.

We will use the lenses that are on sale at our vintage shop Japan Inc.

Asahi Opt Super Multi Coated TAKUMAR 35mm f/3.5

Click here for product sales URL

Click here for the column of cleaning work

In a normal lens, the display portion of the distance indicator (distance reference) shows all the values below the focusing ring.

In this lens, the distance indicator is designed with a cutout so that it can display only the distance to be adjusted and the values before and after that distance.


There is a notch in the aperture value display above the aperture ring.

As far as I know, the only lenses with this notch design currently available are those from the Asahi Optics.

And I think this design is quite original.  

Later, when Asahi Optics changed to Pentax, the notch was lost.

This kind of discovery has nothing to do with practical use, but it is very interesting to me because I care about the design.


I’ll be sure to write another column in the future when I discover something else that interests me, so stay tuned!

In addition to the lens introduced this time, we also sell vintage cameras and lenses, anime goods, and radio cassette recorders, so please see the URL below.

Cameras & Lenses

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Animation Goods

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Acoustics and others

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Vintage Shop Japan Inc. Official Website

Official website (English) URL

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Official website (Japanese) URL

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facebook URL

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Instagram URL

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Pinterest URL

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Writer Takashi Okumura