
Posted: Thu Mar 01, 2012 8:49 pm
Refer to:
http://www.southbristolviews.com/pics/Graphic/manual-pdf/servicemanual.pdf
figure 2 index 34 in the service text (page 2).
ASSUMING the infinity adjustment is correct, set the bed fully reward against the stop then forward .040 to .125 inch (1.016mm - 3.175mm).
Loosen the attaching screws on Bracket, figure 2 item 34, and push it rearward until the rangefinder shows correct infinity focus. The manual says to use a target 500 feet away, that is a typo, it should be 5000 feet away.
Once the RF is set loosen the infinity stop set screws. Using the ground glass move the front standard so that the lens is sharply focused on the same target with the front standard locked and squared to the bed. Slide the infinity stops up to the front standard and secure with the set screws.
Alternative: open the shutter on T or press to focus, set the aperture to wide open. Place camera on a tripod and focus on the ground glass a target at least 5000 feet away. Lock the rails. Measure the gap between the rails and the body stop it should be 1/8 inch or less. With the cam in the camera loosen the actuator bracket screws and move the bracket rearward until the rangefinder indicates infinity focus. Lock the actuator bracket in place.
Cams were cut for the lens actual focal length not its marked focal length. Actual focal length can vary .1mm to 5mm either side of the marked focal length.
Close focusing distances will be off if the cam is mis matched.