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

Switch M/A on AUTO YASHINON-DX 50mm 1... Log in | Log Out | Topics | Search
Moderators | Register | Edit Profile

Classic Camera Repair » Archives-2006 » Switch M/A on AUTO YASHINON-DX 50mm 1:1.7 « Previous Next »

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

Pietro Guardo

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, May 15, 2006 - 02:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi all, the switch on my AUTO YASHINON-DX 50mm 1:1.7 does not work. Only work if i press manually and not in auto. What can i do ?
Top of pagePrevious messageNext messageBottom of page Link to this message

Winfried

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, May 16, 2006 - 04:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Sorry but it's not quite clear what does not work. What happens if you switch from Auto to Manual, and what do you think should happen?
Top of pagePrevious messageNext messageBottom of page Link to this message

Wim Abbeloos

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, May 16, 2006 - 07:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

If you press the pin on the back of the lens the aperture should close to the one selected. Does this not happen?
Top of pagePrevious messageNext messageBottom of page Link to this message

Jan Dvorak

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, May 16, 2006 - 07:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Pietro,

If the Auto/Manual switch is set to Auto and you press the pin on the camera side of the lens, the aperture will close down to the f-stop that you selected. It will re-open when you release pressure from the pin.

If the switch is set to Manual, the aperture will open and close as you turn the diaphragm ring, whether you put pressure on the pin or not.

Now - what is the lens not doing?

Jan

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