Who are we?  Featured Cameras  Articles  Instruction Manuals  Repair Manuals  The Classic Camera Repair Forum  Books  View/Sign Guestbook

Canon FTb not stopping aperture down Log in | Log Out | Topics | Search
Moderators | Register | Edit Profile

Classic Camera Repair » Archives-2009 » Canon FTb not stopping aperture down « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Canuck_curt
Tinkerer
Username: Canuck_curt

Post Number: 28
Registered: 03-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, July 06, 2009 - 08:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hello, just bought a beautiful Canon FTb QL, looks like new, shutter and all functions seem to work but I noticed the aperture isn't stopping down. Removed the lens and tried others but it's the stop down mechanism that's only moving about 1mm instead of continuing its travel to stop down the lens. Any ideas or recommended repair shops in Canada?? Thank you in advance.
Top of pagePrevious messageNext messageBottom of page Link to this message

Gez
Tinkerer
Username: Gez

Post Number: 113
Registered: 09-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, July 06, 2009 - 12:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

At the risk of stating the obvious, have you checked that the small stop-down control, the one that also locks the mirror, hasn't been moved from the white dot to the red L position?
Top of pagePrevious messageNext messageBottom of page Link to this message

Canuck_curt
Tinkerer
Username: Canuck_curt

Post Number: 29
Registered: 03-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, July 06, 2009 - 08:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Yes thanks, checked that in all positions, wish it were that simple.
Top of pagePrevious messageNext messageBottom of page Link to this message

Bossman
Tinkerer
Username: Bossman

Post Number: 88
Registered: 02-2009

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, July 06, 2009 - 09:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Canuck Curt: It's probably internal and not any easy fix but you might try to look at two areas: remove the half-moon shaped plate or cover behind the diaphragm lever (at 6 o'clock back of lens mount)and check for obvious things like a spring off........... also remove the bottom plate and fire the shutter and watch for an area obviously not doing it's job.
Top of pagePrevious messageNext messageBottom of page Link to this message

Canuck_curt
Tinkerer
Username: Canuck_curt

Post Number: 30
Registered: 03-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, July 07, 2009 - 06:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Thank you Art, I'll definitely try those suggestions. Hope to fix it 'cause it's in such sweet shape otherwise.
Top of pagePrevious messageNext messageBottom of page Link to this message

Canuck_curt
Tinkerer
Username: Canuck_curt

Post Number: 31
Registered: 03-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, July 07, 2009 - 03:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Happy as a clam, retried the stop down control about 5 times and the stop down mechanism now works although the lens doesn't stop down. With several different FD lenses it works great now. Only need to fix the lens but that's nothing since I have several FD 50mms. Thanks to all for the help. You guys and gals are the best.

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Password:
Options: Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Last Week | Tree View | Search | User List | Help/Instructions | Program Credits Administration