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Message |
    
Msteen1314
Tinkerer
Username: Msteen1314
Post Number: 20
Registered: 04-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 13, 2011 - 04:46 pm: | 
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I recently acquired a Minolta 7s in excellent cosmetic condition, when the shutter release button is fired however, there is no noticeable movement of the shutter blades.
The camera does not have a battery in it however as the shutter is not electronically controlled, I do not believe this is a problem.
When winding on, the tension appears to be okay however in relationship to other rangefinders it seems a little "slack" near the end of the full throw, not by much however.
Does this sound like an issue with the shutter itself or is it possible that the blades are just gummed up. If it is the latter, which strategy would be best to access the shutter blades.
Thanks
Martin |
Denny
Tinkerer
Username: Denny
Post Number: 79
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 13, 2011 - 07:32 pm: |
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I worked on my neighbor's Himatic 9 with what may be the same issue. I removed the front elements to get to the blades and with the shutter button pressed, lightly touched the blades with a cotton bud (aka Q-tip) and it immediately snapped.
They seemed to clean easily with naptha and q-tips, but I don't remember how I accessed the film side. I think the film side element easily removed also.
Good luck. |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 235
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, September 14, 2011 - 12:16 pm: |
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AFAIR Minolta 7s has electronically controlled shutter?!
So no battery - no fun...
Marek |
Msteen1314
Tinkerer
Username: Msteen1314
Post Number: 22
Registered: 04-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, September 14, 2011 - 04:11 pm: |
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Mareklew, I'm not sure I understand your post. Are you saying the battery is needed to operate the shutter? please elaborate for me as well as others.
Martin |
Msiegel
Tinkerer
Username: Msiegel
Post Number: 259
Registered: 03-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, September 15, 2011 - 04:00 am: |
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The manual says:
The automatic electric eye system in the Minolta Hi-matic 7s is powered by a long-life mercury battery with must be properly seated in the battery chamber before the camera will operate.
Source:
http://www.cameramanuals.org/minolta_pdf/minolta_hi-matic_7s.pdf
Note: with = which - typo is IN the manual.
I don't own a Hi-Matic so that's just a quote not based on experience.
Rgds
Martin |
Neuberger
Tinkerer
Username: Neuberger
Post Number: 55
Registered: 01-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, September 15, 2011 - 07:14 am: |
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A quick look in the archives would easily produce lots of answers to all kinds of questions about the 7, 7s & 9 (!), but that is perhaps too much work.
The 11 (eleven !!) is the only one with an electronic shutter, and it depends on what you understand an "electronically controlled shutter" to be whether the more recent 7sII (!!!) requires a battery to offer "fun" or not, its shutter is stictly mechanical again, there is no solenoid whatsoever.
Read Msiegel's post once and again and you will perhaps realise the quote is about the correct operation of the camera as a picture taker, including the meter, there is, of course, no word about the shutter being electric/electronic/electronical. |
Brcamera
Tinkerer
Username: Brcamera
Post Number: 113
Registered: 08-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, September 15, 2011 - 08:40 am: |
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As Neuberger mentions, the 7s is a full mechanical shutter needing no battery to operate. I think this may be a bit confusing since the 7s offers an "A" setting for full automatic shutter speed control if desired. The Seiko shutter is a bit of a hybrid-the trap needle in the camera meter system actually has a lever that mechanically controls the speeds escapement in the shutter to provide automatic shutter speeds. Most cameras of this era used a trap needle to control only the diaphragm on the shutter so the Minolta was quite advanced with the Seiko LA shutter. |
Msteen1314
Tinkerer
Username: Msteen1314
Post Number: 24
Registered: 04-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, September 15, 2011 - 11:25 am: |
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thanks guys.
The search option is always utilized however as the above responses have also indicated, clarification is quite often needed just to be clear before I attempt any repair.
Cheers |
Joels23
Tinkerer
Username: Joels23
Post Number: 2
Registered: 06-2012
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 28, 2012 - 08:37 am: |
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Hi guys,
I need some help with my minolta 7sII's wiring. I opened up the bottom plate of the camera and I noticed the RED wire was not attached to anything. It looks like it came of due to corrosion. Does anyone know where the RED wire goes? Thanks a bunch!! |
Teraforce88
Tinkerer
Username: Teraforce88
Post Number: 39
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 03, 2012 - 08:33 pm: |
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@Neuberger: The Hi-matic 11's shutter CAN operate without batteries (using the manual preset shutter speeds); however, the 11 isn't usable without batteries b/c its aperture mechanism depends on it (there's no manual override for the aperture) |
