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Minolta SRT102 F-stop viewfinder adjustment
Old 1 Week Ago   #1
shawn
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Minolta SRT102 F-stop viewfinder adjustment

Is it possible to adjust the F-stop window in the SRT-102 viewfinder? Mine seems to be tilted slightly so it isn't actually displaying the selected F-stop. I took the Minolta cover off the top of the prism housing and it looks like there are two adjustment screws there but I can't tell when they adjust and don't want to start futzing with it and screwing up something else.

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Old 1 Week Ago   #2
wwfloyd
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Deleted. Just realized my reply addressed the shutter speed display.
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Old 1 Week Ago   #3
shawn
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Quote:
Originally Posted by wwfloyd View Post
Deleted. Just realized my reply addressed the shutter speed display.
Thanks for trying! That display is spot on, the aperture display is looking at the wrong spot on the lens. By about a stop.

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Shawn
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Old 1 Week Ago   #4
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Figured it out. There is a small mirror on a bracket that is adjusted to change positioning. Service manual basically says to bend it to make adjustments. Touching it and the mirror fell off the mount so I now have the top off to reglue the mirror to the mount. I'll take a few pictures while I am in there.

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Old 1 Week Ago   #5
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Used most of the directions in this video to take the cover off.

https://www.youtube.com/watch?v=Y_WOwee8Qhw

Except on the 102 the lens indicator does not have a screw in it. Take off the Minolta nameplace (2 screws) and there are two screws under the nameplate which hold the front of the top on.









Turned out to be an easy fix. Viewfinder on the SRT102 is awesome now that the aperture reading is accurate and centered in the viewfinder.

While I was working on it I also put new foam in and adjusted the meter for regular batteries. Meter is really easy. Two screws to take the bottom cover off and then there is one pot to adjust it.



I had to turn the pot clockwise to about the 3 oclock position. Might tweak it a little as it matches my F2 exactly indoors but seems like it will overexpose around a stop in full sun. There is a mechanical adjust available too but doubt it will need that.

Shawn
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Old 1 Week Ago   #6
AlwaysOnAuto
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Thanks for adding the pics, they really help.
So, once you got the mirror bonded to the bracket, was the bracket in need of adjustment? ie, was it bent out of shape?
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Old 1 Week Ago   #7
shawn
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Once I reglued it and reattached it it was actually already perfect. The bracket holes are oversized so I must have positioned it better. With the top off you cane also adjust the frame for the display. Those are the screws on the other side.

Shawn
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Old 1 Week Ago   #8
wwfloyd
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Nice work, including the meter adjustment!
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Old 1 Week Ago   #9
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This is the page from the service manual.



Shawn
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