FAQ FAQ  Forum Search   Events   Register Register  Login Login

Minolta Maxxum/Dynax/Alpha 7 and 9 aperture fault

Author
Tom2922 View Drop Down
Newbie
Newbie

Joined: 12 August 2020
Country: United Kingdom
Location: CARDIFF
Status: Offline
Posts: 1
Post Options Post Options   Quote Tom2922 Quote  Post ReplyReply Direct Link To This Post Topic: Minolta Maxxum/Dynax/Alpha 7 and 9 aperture fault
    Posted: 12 August 2020 at 10:23
So I've recently taken a punt on a Dynax 7, have loaded the first roll of film and I'm getting what I now know to be quite common issue of a worn out or damaged aperture assembly. Whenever I actuate the shutter or the DOF preview then I get an 'error' message on the LCD screen.

Having researched this and spoken to the minolta service centre in the UK, it is now apparent that its a dud, and the assemblies to replace the part are no longer available from anywhere. SONY apparently scrapped the parts in the acquisition.

Instead I'm going to take it on the chin and try a different camera body. Does anyone know if the Maxxum/Dynax/Alpha 9 used the same assembly for the aperture control? What about the 9Ti ? Is it the same mechanism?

If I were to buy one am I risking having the same issues?

Any input from someone with experience of this would be much appreciated.
 



Back to Top
Miranda F View Drop Down
Senior Member
Senior Member

Joined: 11 January 2014
Country: United Kingdom
Location: Bristol
Status: Offline
Posts: 4019
Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2020 at 12:57
Maybe the Dynax/Maxxum 5 is too downmarket for you but it does most of the useful things the 7 does, and there are plenty around in working order (but check the VF for coloured shadows, if you can - the resin on the pcb gets onto the pentamirror).
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
Back to Top
addy landzaat View Drop Down
Senior Member
Senior Member

Joined: 22 April 2006
Country: Netherlands
Location: Netherlands
Status: Online
Posts: 12953
Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 13 August 2020 at 18:00
Well, it is a known problem, but not that common. The sticky body is much, much, more common. A lot of people enjoy their 7 or 9 to this day. Just make sure the aperture is fine before you buy or make sure there is a warranty policy.

Some threads on the subject:
https://www.dyxum.com/dforum/minolta-maxxum-dynnax-a9-question_topic136237.html
https://www.dyxum.com/dforum/dynax-9-problem_topic130238.html
https://www.dyxum.com/dforum/minolta-maxxum-dynax-7-aperture-problem-common_topic133461.html
https://www.dyxum.com/dforum/maxxum-7-aperture-down-problem_topic128579.html
https://www.dyxum.com/dforum/maxxum-9-help-aperture-issues_topic120186.html

re. the 4/5 or 40/60: it is cheap, so, when it breaks you can just buy a new one. But it is a completely different class of camera.
Why not follow me on Instagram? @Addy_101
Back to Top
mk3018 View Drop Down
Newbie
Newbie

Joined: 28 November 2021
Status: Offline
Posts: 8
Post Options Post Options   Quote mk3018 Quote  Post ReplyReply Direct Link To This Post Posted: 19 June 2022 at 14:44
Back to Top
amrep View Drop Down
Senior Member
Senior Member

Joined: 02 February 2015
Country: Norway
Status: Offline
Posts: 294
Post Options Post Options   Quote amrep Quote  Post ReplyReply Direct Link To This Post Posted: 19 June 2022 at 15:31
Great to see this nice repair!
Personally I am not so interested i repairing those Minolta A-mount film cameras (because newer and very good digital Sony A-mount bodies are available for cheap). But since others might be interested, it would be great if you could reveal some facts about the gear to replace:
- diameter, number of teeth (this will imply modulus)
- part number and manufacturer

This might be even more helpful than posting a picture :)
Back to Top
neilt3 View Drop Down
Senior Member
Senior Member

Joined: 13 September 2010
Country: United Kingdom
Location: Manchester.U.K
Status: Offline
Posts: 2883
Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 19 June 2022 at 16:10
Originally posted by amrep amrep wrote:

Great to see this nice repair!
Personally I am not so interested i repairing those Minolta A-mount film cameras (because newer and very good digital Sony A-mount bodies are available for cheap). But since others might be interested, it would be great if you could reveal some facts about the gear to replace:
- diameter, number of teeth (this will imply modulus)
- part number and manufacturer

This might be even more helpful than posting a picture :)


A link to a source for the replacement part would be even more helpful .
I might even be tempted to get a few spares for my three Dynax 7's !
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
 



Back to Top
amrep View Drop Down
Senior Member
Senior Member

Joined: 02 February 2015
Country: Norway
Status: Offline
Posts: 294
Post Options Post Options   Quote amrep Quote  Post ReplyReply Direct Link To This Post Posted: 19 June 2022 at 18:15
Yes, but links may soon die - specs are forever ...
Back to Top
Dyxum main page >  Forum Home > Equipment forums > Camera Talk > Film cameras

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.078 seconds.

Monitor calibration strip

Dyxum.com - Home of the alpha system photographer

In memory of Cameron Hill - brettania

Feel free to contact us if needed.