Operating Instructions

14
13. WIDE-ANGLE PHOTOGRAPHY
(MASTER TECHNIKA classic)
ATTENTION:
Remove rangefinder coupling cam before lowering the
dropbed into the wide angle position.
When using 72 mm and 90 mm wide angle lenses, the upper track must be
moved back as follows: Press the track lock button (16) just long enough to
release the track, and slide the track towards the camera body until it clicks
into position. When using the camera hand-held and with rangefinder focu-
sing, the film back must be in horizontal position, in order to avoid vignetting
by the front edge of the drop bed. To take photographs in vertical position, the
entire camera must be turned by 90°. This camera operation is essential when
photographing with the coupled multifocus rangefinder. It is also recommen-
ded when focusing on the ground glass. In exceptional cases (vertical compo-
sition from a tripod with 72 mm or 90 mm Super Angulon without using the
rising front adjustment), it is possible to proceed in the following manner, in
order to avoid the need for a lateral tilt of the camera: Remove rangefinder
coupling cam, press down on both struts while you lower the drop-bed 30°
until it clicks into the third notch of the struts, loosen the locking screw (1) and
press the tilt release knob (3), tilt the lensboard all the way back and re-tigh-
ten the locking knob (1). Now, as described above, the upper track is pushed
to its rear position. Due to the inclined position of the drop-bed, the infinity
stops no longer indicate the wide angle infinity position. The lens is focused for
infinity by moving the lens standard back and forth on the upper track.
PLEASE NOTE:
The combination of 72 mm wide-angle lenses and shorter with 4 x 5 inch film
may cause slight vignetting even with the groundglass in horizontal position.
For rangefinder focusing with 72 mm lenses, a slight lens rise is therefore
recommended.