Prosilica GT Technical Manual V2.4.1
58
Camera dimensions
F-Mount flange focal distance
Flange focal distance is the optical distance from the mounting flange to image
sensor die. Prosilica GT F-Mount cameras are optically calibrated to a standard
46.5 mm optical flange focal distance.
Adjustment of F-Mount
The F-Mount is adjusted at the factory and should not require adjusting. If for
some reason the lens mount requires adjustment, use the following method.
Attach F-Mount compatible lens
Use an F-Mount compatible lens that allows an infinity focus. Attach the lens to
the camera using a counter-clockwise rotation of about a quarter turn. The lens
should snap into place and the lens flange and camera flange should mate over
the full circumference.
Loosen F-Mount front assembly
Use a 1.5mm hex wrench to loosen the 3 set screws then hold the F-Mount front
assembly to the camera body.
Image to infinity
Set the lens to infinity and image a distant object—10 to 15 m should suffice.
Gently move the F-Mount front until focused and lock it in place.
Note
Information on
flange focal distance of Prosilica GT large
format cameras with M42 / M58-Mount
is available here:
Figure 45: Prosilica GT large format with F-Mount isometric view
M3 SET SCREW: 3 PLACES
F-MOUNT FRONT ASSEMBLY