No, 3654. Eyepiece camera, complete with three single 
metal plateholders ... aie a8 Toe oO 
No. 3655. Extra single metal plateholders ... sae CAC 03: 6 
This camera is for use over the eyepiece of the microscope and 
consists of a tapered box, 63 in. long. The upper end is fitted 
with a frame which carries a focussing screen or single metal plate 
holder. The lower end is fitted with an exposing shutter giving 
time, bulb and instantaneous speeds. Into this shutter is screwed an 
adapter which fits over the drawtube of the microscope. The adap- 
ter is provided with a clamping screw to ensure the camera being 
rigidly held in position. The shutter is actuated by an antinous release. 
The size of the plate which the single metal plate holders carry is 
t-plate (44 x 3} in.). The camera is extremely light in weight, the 
total weight including a single metal slide being 15 oz. 
BECK VERTICAL PHOTOMICROGRAPHIC CAMERA. 
This apparatus is of exceptionally 
rigid construction, and is intended for 
photomicrography with high powers. 
The base is very massive and is 
supported on levelling screws. Cast 
solid with this base is an upright 
pular in which rotates the vertical 
rod carrying the camera and which 
can be clamped in any position of its 
rotation. By this rotation of the ver- 
tical rod the whole camera can be 
turned aside out of the optical axis 
when not required. The camera has 
extension of 80 centimetres, and slides 
on the upright bar which is graduated 
in centimetres. It is half plate size, 
carriers being provided in the dark 
slide to take +-plates. The front of 
the camera carries an exposing shutter 
and also has a light tight connector for 
attachment to the microscope. 
No. 3650. Vertical photomicro- 
graphic camera, complete with one 
double book form slide ... £20 0 0 
No. 3651. Extra double book form 
slides with carriers for 4-plates 
No. 3650 El 45-0 
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