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Maintenance Report

ASAHI OPT. smc PENTAX-M 28mm f/2.8 lens cleaning work

lens

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



ASAHI OPT. smc PENTAX-M 28mm f/2.8 lens cleaning work


We will be cleaning this lens that we purchased this time.


YouTube channel is here

First, remove the front and rear lens caps from the lens.

Remove dust from the exterior of the lens body.

Wipe the body with a towel using anhydrous ethanol.

After removing the dust from the front lens


Use anhydrous ethanol and wipe it with a Silvon paper.

After removing dust from the rear lens

Use anhydrous ethanol and wipe it off using a Silvon paper.

After removing dust from the lens mount

Using anhydrous ethanol, wipe it using Sylvon paper and cotton swab.

There are peeling and a little rust on the plating

on the mount ground surface

Front lens cap.
Using anhydrous ethanol, wipe it using a Silvon paper.

Rear lens cap.

Using anhydrous ethanol, wipe it using Silvon paper.

Check the movement of the focus ring and aperture feather

Finally
Front lens cap and rear lens cap.
Cleaning and operation check are finished.


I have cleaned lenses of the same model and

specifications before



Many of the lenses we sell are made by Asahi Optical Industries.



The lens is clean except for some rust and peeling

of the plating on the lens mount



For everyday film camera photography



Use an adapter to attach a digital camera


For one of your collection





Click here for the ebay site

Writer Takashi Okumura


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