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Wciu
Tinkerer
Username: Wciu
Post Number: 1
Registered: 09-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, September 01, 2009 - 09:19 pm: | 
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I got one of these recently: http://www.mattdentonphoto.com/cameras/prazisa.html
Unfortunately, the horizontal alignment is off. I was hoping to open it up to adjust it, but can get it apart. I can only unscrew the screw on the left side, but there is a screw attached on the right side, probably behind the wheel, that I don't know how to get to.
Anyone has an idea on how I can take this thing apart and adjust the horizontal alignment?
Thanks |
Waynemel
Tinkerer
Username: Waynemel
Post Number: 128
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, August 06, 2010 - 09:31 pm: |
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I have the same issue. Horizontal alignment is adjusted with the screw on the dial.
My rangefinder is way off in the vertical. Does anyone know hoe to make this adjustment? |
Georgeboosh
Tinkerer
Username: Georgeboosh
Post Number: 13
Registered: 04-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 08, 2010 - 11:34 am: |
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To open up the rangefinder to adjust the vertical alignment:
First- pry off the plastic circular distance scale from the dial that you turn to adjust the rangefinder.
This reveals a small screw on the dial. Undo the screw and remove.
Undo the large centre screw of the dial and remove the dial from the body of the rangefinder. There is a screw underneath on the main body. Undo this and remove screw.
On the left hand side of the rangefinder, to the left of the window that you look through, there is a screw underneath the black leatherette. Pry up the leatherette and undo this screw.
The rear (the side closest to you when looking through the window) can now be taken off.
I can't remember exactly what the insides look like but there is a panel with a screw on it inside, inbetween the two prisms/mirrors. Unscrew the screw and adjust the panel up or down to alter the vertical. It should be obvious once you see the inside unit. |
Georgeboosh
Tinkerer
Username: Georgeboosh
Post Number: 14
Registered: 04-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 08, 2010 - 11:40 am: |
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To adjust the horizontal image alignment, hold the dial still while turning the large centre screw with a screw driver. No disassembly is required to adjust the horizontal alignment. |
Waynemel
Tinkerer
Username: Waynemel
Post Number: 131
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, August 09, 2010 - 08:49 am: |
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Thanks for the information. Finding that hidden screw did the trick.
After opening, I realized how the vertical alignment can be done without opening the case.
To the right of the viewfinder, on the back is a small hole. Inside the rangefinder, on the inside back surface, is a slot in the mirror arm. This slot goes around the small hole. If you insert a small hooked tool (I used a dental pick), you can engage the slot on the back side. If you turn the tool, you are pushing the edges of the slot either up or down and therefore adjusting the vertical angle of the mirror.
I should have taken a photo of the insides to make it more clear.
I suspect that there was a special tool for making this adjustment. |
Georgeboosh
Tinkerer
Username: Georgeboosh
Post Number: 15
Registered: 04-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, August 10, 2010 - 09:57 am: |
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That is a good idea. I didn't spot that hole. |
