ASAHI OPT. smc PENTAX-M 28mm f/2.8 lens cleaning work
lens
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/DSC_1402-scaled.jpg)
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
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/1-13.png)
We will be cleaning this lens that we purchased this time.
First, remove the front and rear lens caps from the lens.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/2-14.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/3-10.png)
Remove dust from the exterior of the lens body.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/4-13.png)
Wipe the body with a towel using anhydrous ethanol.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/5-15.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/6-13.png)
After removing the dust from the front lens
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/7-13.png)
Use anhydrous ethanol and wipe it with a Silvon paper.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/8-15.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/9-12.png)
After removing dust from the rear lens
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/10-13.png)
Use anhydrous ethanol and wipe it off using a Silvon paper.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/11-12.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/12-14.png)
After removing dust from the lens mount
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/14-14.png)
Using anhydrous ethanol, wipe it using Sylvon paper and cotton swab.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/15-14.png)
There are peeling and a little rust on the plating
on the mount ground surface
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/16-12.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/17-16.png)
Front lens cap.
Using anhydrous ethanol, wipe it using a Silvon paper.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/20A.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/20B.png)
Rear lens cap.
Using anhydrous ethanol, wipe it using Silvon paper.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/20C.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/20D.png)
Check the movement of the focus ring and aperture feather
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/18-14.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/19-13.png)
Finally
Front lens cap and rear lens cap.
Cleaning and operation check are finished.
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/20-13.png)
![](http://vintageshopjapan.com/wp-content/uploads/2022/09/21-11.png)
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
Writer Takashi Okumura