Cleaning the rangefinder and bringing back the rangefinder image
Cleaning the rangefinder and bringing back the rangefinder image
OK, guy. As promised in the "another Vitomatic thread" , here is my way, how to clean the viewfinder and rangefinder.
This will likely bring back the double image of the rangefinder, which disappears on most (if not all) Vitomatic IIIb with the time.
Here we have a nice IIIb:
There seem to be a yellow dot in the middle of the finder, but no rangefinder image at all:
Here we see the window for the rangefinder. Very dim and hazy, even on the outside glass:
OK, we need to clean this!
🙂
First remove the top plate. There are three screws. Two small ones on each side of the top plate and one is hidden behind the lever.
These have very thin slots, so use the right tool!!! Or make your screwdriver fitting.
Top plate off:
Next, remove the whole selenium meter part. For this you need to remove the two big screws on the right side. There might be washers also:
Now you can also clean at least one side of the downside window of the meter part also. (Has nothing to do with the rangefinder). But be careful with the one on top! It's glued from behind and if you press it will probably loose.....
This is how the rangefinder mechanism looks like:
Some Vitomatics have an additional plastic glas in front, some others don't. This one has it, others only have a hole here:
This means, we have 5 surfaces here to clean up. With top plate attached we have 7!
The most important thing is the one which is hardest to reach: The surfaces between the moving glass and the white piece, where the image is getting in.
Hard to photograpfh with my bad digital camera:
I leave it to you, how to reach this surfaces. I take off the cotton of a Q-tip. Then I fill this cotton piece with Vodka (yes, this is really good for cleaning, not agressive) then take a toothpick to get it between there.
Be careful, you might misalign the image! Maybe easier access, if camera is set to 500/22 and ASA 25.
If you have the little cotton piece in between there, you may move the distance ring of the camera also.
Dry it up with a dry cotton.
Then don't forget fo clean the 2 surfaces of the viewfinder window!
All this should bring back the rangefinder image. OK, it will never be so bright as in a Leica, but it is there again! :
If you will attach the top plate now, you will probably notice, that it will dim out again.
So I clean the whole top plate.
See, that the front stuff is just bended on the top plate, so do not remove that, if you don't want to risk to break it!
I just wash the whole top plate in warm dishwater soap. The silver (or sometimes black) dot on top of the diffusion window is just glued on there and will probably loose! So be sure, your washbasin is closed! Or you will loose this forever!
Be sure, that it is totally dry before you put it back on. Leave it in the sun, or just store it some days.
Here is the cleaned but not yet totally dried top plate:
Well, that's it!
Good luck! And remember, this is at your own risk. I am not responsible if something goes wrong.
Have a nice weekend!