Figure 1-5. Lensboard assembly

(2), attached to the camera back and supported by a tube

guide on the lensboard, is extendible and in turn supports the

bellows by six roller carriers (3). A webbed strap (3) secures

the bellows assembly to the lensboard frame while the

camera is in transit.

e. Lensboard Assembly. The lensboard (2, fig. 1-5) is

one of the upright members of the camera, supported by the

lensboard carriage base plate (9) by two side frames (1). The

assembly is provided with an inner lensboard frame (17),

receiving the lens mounting plate (18) equipped to hold the 19

or 24 inch lens (3). The inner lensboard frame is movable

and can be adjusted horizontally and vertically by two manual

control knobs (5 and 10, fig. 1-4) at the darkroom end of the

camera. The lensboard carriage base plate (9, fig. 1-5)

provides support for the lensboard assembly and travels

horizontally on the camera rail (8) within a limited area. The

base plate is driven by an induction-start, induction-run

reversible motor controlled by a switch (14) on the back

support plate. A handwheel (7) provides fine focusing

adjustment for the lensboard assembly.

Figure 1-5. Lensboard assembly

1-4