Maintenance Report

Film sensitivity dial design for Asahi Optics film SLR cameras Part 3 !



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

In this article, we will introduce the film sensitivity dial of Asahi Optics’s manual focus film SLR camera released in 1973.

ASAHI PENTAX SPOTMATIC F (Reference product)

The film sensitivity dial is integrated inside the shutter speed dial next to the shutter release button.

This setting is for ASA display only, from 20 to 3600.
The numerical values are shown in black color on a silver-colored base plate.

The numerical value is visible through the window in the shutter speed display.

The sensitivity setting is made by turning the dial while lifting up the side part of the dial to set the value.

The dial sides have a relaxed dial design.

In this issue, we introduced the film sensitivity dial of Asahi Optics’s 1973 release manual focus SLR camera.

In this camera, the dial was designed to be used with the shutter speed dial as well!

In the 70’s, the dials were usually lifted up to change the value. And the method in which the numerical values could be seen through a window made the dial very easy to read.

We will continue to introduce various functional designs and areas of interest to you, so please look forward to them!

Thank you again for reading this column.

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Writer Takashi Okumura