open a lens

dxphoto · Jun 13, 2008

Hi,

Do you guys happen to know how to open a leica lens? need to clean the haze. I have a 50mm summicron, made in canada with tab. Thanks.

Pinholemaster · Jun 13, 2008

The only way I open a Leica lens is by sending it to a trained technician.

Uhner · Jun 13, 2008

Pinholemaster said:
The only way I open a Leica lens is by sending it to a trained technician.

I agree, that is really the best option.

df cardwell · Jun 13, 2008

My late friend Sheldon Brown designed
a precision instrument for just this purpose:

Get a good grip, and just reef on it
Should do the trick

.

David Brown · Jun 13, 2008

I successfully opened a Mamiya lens years ago. Ended up sending all the pieces in a box to Paul Ebel so he could put it back together.

Frank Szabo · Jun 13, 2008

df cardwell said:
My late friend Sheldon Brown designed
a precision instrument for just this purpose:

Get a good grip, and just reef on it
Should do the trick

.

This guy and some high explosives should do the trick, along with a pipe wrench, of course..

elekm · Jun 13, 2008

Generally, you must remove the face ring. But it depends on the lens. If it has slots, you can use a spanner wrench. Otherwise, you can use a rubber plug.

However, some lenses aren't easily disassembled and require special tools.

Upon reassembly, you should recollimate the lens.

iamzip · Jun 13, 2008

df cardwell said:
My late friend Sheldon Brown designed
a precision instrument for just this purpose:

Get a good grip, and just reef on it
Should do the trick

.

I need to get me one of those!

tony lockerbie · Jun 13, 2008

DF, we are talking lens repair..... not dentistry!

Tony

df cardwell · Jun 13, 2008

Sheldon's Tork-Grip also functions as an inertial impact alignment tool.

As for cleaning the lens cells, the diaphragm, and collimation, it is next to useless.

I'm pretty sure DAG is much less expensive than a genuine Tork-Grip.

TORK-GRIP Universal Torque Wrenches are not available in any store,
only on the Internet! Order Yours Today!!!

.http://www.sheldonbrown.com/tork-grip.html

dxphoto · Jun 14, 2008

hey guys... you guys are sooooo cool.... I was with a guy who fixes cameras but didn't know how to open this type of lens.... I've decided to send it to DAG....
thanks a lot for all the inputs.

df cardwell · Jun 14, 2008

Steve Grimes always said it was never a good sign
when you gave your Leica to a repairman who said,
"Oooh ! I've always wanted to work on one of THESE !"

good luck dx !

lens_hacker · Jun 26, 2008

I've disassembled a Type I Rigid Summicron, several collapsible Summicrons, Summitars, a Summar, and 9cm Elmars. I would vote to send a more modern lens to DAG, Essex, or Youxin Ye or other experienced person for cleaning.

I would not take apart the newer Leica lenses.

open a lens

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