Maintenance Report

About Asahi Pentax K Mount Lenses



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

Please stay with us for another installment of our lens mount series.

I will write about the Asahi Pentax K mount.

I will explain using lenses sell by our company Vintage Shop Japan Inc.

Asahi smc PENTAX-M 28mm f/2.8

Click here for the product URL

Lenses for Asahi Pentax 35mm film cameras have replaced

the M42 mount with the K-mount lenses introduced here.

The M42 mount is a screw-in type, but the K mount is a

bayonet type, which is turned on the lens side for mounting.

M42 mount lenses (reference)


The difference can be clearly seen in the comparison

The screw-in type takes longer to install, but it is easy

to install by turning and fitting.

This K mount was also used for some lenses by Ricoh and others.

These are the K mounts for Asahi Pentax lenses.

We will continue to write our lens mount series.

Stay tuned!

In addition to the above items, we also sell vintage cameras and

lenses, please see the URL below.

Cameras & Lenses

Click here for URL

Animation Goods

Click here for URL

Acoustics and others

Click here for URL

Vintage Shop Japan Inc. Official Website

Official website (English) URL

Click here for URL

Official website (Japanese) URL

Click here for URL

facebook URL

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Instagram URL

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Pinterest URL

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Writer Takashi Okumura