With shorter focal-length lenses, this screen is nof suitable because of light fall-off in the corners.
Motor Drive MD-4
One of the most exciting accessories for the F3 High-Eyepoint camera is the Motor Drive MD-4. This amazingly
compact, light, and streamlined unit attaches to the bottom of the camera in seconds and advances the film either
singly or in sequence up to 6* frames per second– making it the fastest regular production motor drive on the
market today. Actual controls have been reduced to only those necessary for convenient operation. In addition to
the electromagnetic trigger button (which also turns on the camera's meter when depressed halfway), there are its
concentric S-C (Single/Continuous) mode selector, a battery check button and LED indicators, two interlocking
rewind slides for automatic film rewinding, and a subtractive frame counter which stops the motor at the desired
number of frames. Eight AA-type penlight batteries fit into a quick-release clip housed in the base of the motor
drive. An optional NiCd battery pack is available for use in cold weather or when you want the fastest possible
firing rate. Once you attach the MD-4 to your camera, you'll never want to take it off.
The Firing Rate Converter MK-1 is available as a special accessory for a motor-driven F3 High-Eyepoint