Graflex.org Forum Index Graflex.org
Get help with your Graflex questions here
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Mamiya 23 Standard 90mm lens problem

 
Post new topic   Reply to topic    Graflex.org Forum Index -> Lenses Help
View previous topic :: View next topic  
Author Message
jbo



Joined: 13 Sep 2008
Posts: 10
Location: Lakewood, Ohio

PostPosted: Mon Oct 26, 2009 1:21 am    Post subject: Mamiya 23 Standard 90mm lens problem Reply with quote

I just bought a Mamiya 23 Standard camera. It came with a 90mm lens. The lens has a problem. The aperture control won't move. Everything else seems to work OK. Any suggestions on what could be causing this & how I can fix it?

Thanks, Jim
Back to top
View user's profile Send private message Send e-mail
tsgrimm



Joined: 04 Apr 2004
Posts: 158
Location: SE Michigan

PostPosted: Mon Oct 26, 2009 3:00 pm    Post subject: Reply with quote

I recommend Midwest Camera Repair.
http://www.midwestcamera.com
Back to top
View user's profile Send private message
C. Henry



Joined: 13 Dec 2005
Posts: 357
Location: North East Georgia, USA

PostPosted: Mon Oct 26, 2009 7:14 pm    Post subject: Reply with quote

The post about a half dozen below this one on this forum titled "Iris Repair on a KA" may also be of help.

C. Henry
Back to top
View user's profile Send private message
Dan Fromm



Joined: 14 May 2001
Posts: 1885
Location: New Jersey

PostPosted: Mon Oct 26, 2009 7:35 pm    Post subject: Reply with quote

Different problem, CH. The Kodak Anastigmat a couple of threads below is in barrel and its problem is a broken diaphragm. The OP's lens is in shutter and the shutter's diaphragm won't move.

IIRC Mamiya Press lenses communicate with the RF in the body, otherwise are completely standalone. That is, the shutter is cocked by pressing its cocking lever, fired by pressing its release lever, and the diaphragm setting is selected with the shutter's diaphragm lever.

If it were mine and I were sure there was no preview button -- I don't think there is, but could be wrong -- I'd send it to an expert. SKGrimes had been mentioned, there's also Paul Ebel, Carol Miller at Flutotscamerarepair.com, midwest as has been mentioned, and there are many others.
Back to top
View user's profile Send private message
Henry



Joined: 09 May 2001
Posts: 1442
Location: Allentown, Pennsylvania

PostPosted: Mon Oct 26, 2009 8:35 pm    Post subject: Reply with quote

Maybe OP could sort this out for us. He says "aperture," which to me means "iris diaphragm." As opposed to shutter (i.e., timing) mechanism, blades, etc.
Back to top
View user's profile Send private message
jbo



Joined: 13 Sep 2008
Posts: 10
Location: Lakewood, Ohio

PostPosted: Mon Oct 26, 2009 11:19 pm    Post subject: Reply with quote

It is the "iris diaphragm" that won't move.

Thanks for everyones comments. The Mamiya 23 Standard is a beautiful camera. It's condition is 9 out of 10. Came with two 6x7mm backs (1 new).

>>> Jim
Back to top
View user's profile Send private message Send e-mail
45PSS



Joined: 28 Sep 2001
Posts: 3219
Location: Mid Peninsula, Ca.

PostPosted: Tue Oct 27, 2009 6:13 am    Post subject: Reply with quote

Can you remove the lens from the camera body?
Will the aperture lever operate with the lens off the camera body?
Will the shutter operate at all speed settings?
Can you provide pictures of the lens/shutter?
What aperture is it stuck at?
Can you see the aperture blades?
Are the aperture blades laying flat?
Are the aperture blades buckled?
Do not try to force the lever until the lens elements are removed from the shutter as the glass may be seriously scratched if the lever is forced and a blade or its retaining rivet breaks. Sometimes a lever will get jambed in shipping or stick in place from non use for many years. If in doubt send it out to a qualified repair center as previously stated in the previous responses.
_________________
The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.
Back to top
View user's profile Send private message Visit poster's website
jbo



Joined: 13 Sep 2008
Posts: 10
Location: Lakewood, Ohio

PostPosted: Sun Dec 06, 2009 12:14 am    Post subject: Reply with quote

Hi everyone,

Thanks for your help & suggestions.

I got estimates from Midwest ($95.00 + parts + shipping), Camerarepair.com ($108.00 + shipping). Finally took it to a local camera store that has a repair department - Dodd Camera in Cleveland, Ohio. They wanted a $40.00 deposit to look at it & give an estimate. The deposit would be applied to the repair. They charged me $69.99 to fix it. The lens now works great.

Thanks again, Jim
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Graflex.org Forum Index -> Lenses Help All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group