DIY suction cap for lens disassembling


In fact, I didn’t wanted to make it. I just wanted to buy a tool for disassemble a very expensive lens (a Canon 85mm F1.2).
Unfortunately, the tool was not available in short time. Here is the link to the original (32 USD – but in the USA…):


But I need the tool now. Ok, what are the keywords? Suction and vacuum. Let google for it.


After some research, I have found a pneumatics distributor in my city, who has some suction cups (for packaging industry etc.).

I have gone to the shop, and they offered me this one, for 10 USD:—flat-concave-20-150-mm/0104803/


Good. The material is perfect, as you can see: “DURAFLEX® suction cups manufactured in a specially developed material that features the elasticity of rubber and wear resistance of polyurethane. The material does not leave any marks on the objects handled.”

But I needed a vacuum-source too, a kind of handle for it. Well, I work in the automotive industry, and we hade on the shelf a damaged fuel hand-pump. Unused, but the valve has been damaged.

Exactly like this one, for ca. 4 USD:


Well, I just pushed the suction cup on the and – and was perfect, excepting the fact,that the aluminum tube was protruding into the inside of the cup.
Ok, I just had to cut it.


I have a good old Russian lathe. So in approx. 1 hour I made the suction tube from a piece of 20mm diameter aluminum bar like this pictures:

WP_20160219_19_41_49_Pro  WP_20160219_19_41_10_Pro 

WP_20160219_19_42_07_Pro  WP_20160219_19_44_04_Pro



And works perfect.

About canonrepair

Ruzsa János. Amatőr fotós, Canon DSLR váz. Amateur photographer. Canon DSLR user.
This entry was posted in DIY, lens, tools. Bookmark the permalink.

Opinion, question?

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s