All images © Bob Atkins

1.jpg

This website is hosted by:
Host Unlimited Domains on 1 Account

5.jpg

Welcome, Guest. Please login or register.

Login with username, password and session length
 
Web www.bobatkins.com
*
+  The Canon EOS and Photography Forums
|-+  Photography Forums
| |-+  Technical Questions on Photography and Optics
| | |-+  "Blueprint" a lens?
« previous next »
Pages: [1]
Print
Author Topic: "Blueprint" a lens?  (Read 2570 times)  bookmark this topic!
Frank Kolwicz
Senior Member
****
Posts: 130


"Blueprint" a lens?
« on: September 17, 2011, 05:44:01 PM »

Is there anyone who can rebuild a lens to get the maximum performance?

I think my 500/4.5 is adequate, but only just, and I wonder if it is on the low side of factory specs or worse. It would be worth some money to me to get as much performance out of it as possible.
Logged
Bob Atkins
Administrator
Hero Member
*****
Posts: 1204


Re: "Blueprint" a lens?
« Reply #1 on: September 18, 2011, 11:54:10 AM »

I imagine the best people who have the knowledge and necessary equipment would be Canon. Perhaps you could find a 3rd party shop, but nobody I know of specializes in such a procedure.

Canon would probably do a "clean and adjust" on the lens, though I don't think they have all the parts anymore to repair it if something is wrong. I know they have to equipment to check for alignment. They could certainly take it apart and put it back together, but whether it would end up any sharper than it is now I don't know - and neither do they until they've done it. If it's not out of alignment now, rebuilding it won't make much difference.

I'd certainly talk to Canon first and see what they will offer to do. If they can't help then I'd maybe call someone like Precision Camera Repair (www.precisioncamera.com) and see what they can do to help.
« Last Edit: September 18, 2011, 12:51:56 PM by Bob Atkins » Logged
Frank Kolwicz
Senior Member
****
Posts: 130


Re: "Blueprint" a lens?
« Reply #2 on: September 21, 2011, 12:15:16 PM »

Thanks, Bob.

Canon doesn't want anything to do with my modified lens. All they say is that it is "unsupported".

Frank
Logged
Bob Atkins
Administrator
Hero Member
*****
Posts: 1204


Re: "Blueprint" a lens?
« Reply #3 on: September 21, 2011, 01:14:17 PM »

I didn't realize it was modified. I can understand Canon's position if they don't want to work on a lens that has been modified by a 3rd party. I'm guessing it's a FD500/4.5 modified to an EOS mount?

You'd certainly have more luck with a 3rd party repair shop in that case, though even there I wouldn't be surprised if there is some reluctance to work on anything that's non-stock.
Logged
Pages: [1]    
Print
« previous next »
Jump to: