Yashica Twin Lens Reflex Guide - Focal Press January 1964
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Scans and Document copyright by Mischa Koning - www.3106.net
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Shooting
1.
Advance the film. Press film release button in the centre of the film transport knob and turn the knob as far as it
will go. The next number will then appear in the automatic film counter window.
2.
Select shutter speed by turning the thumb wheel (right) until the speed required appears in the cut-out window on
the top of the finder lens. The figures engraved 1, 2, 4, 8, 15, 30, 60, 125, 250, 500 are fractions of seconds and
stand for 1/1,½,¼, 1/8, 1/15, 1/30, 1/60, 1/125,1/250, 1/500 sec. See also the chapter on "Exposure".
3.
Select aperture by turning the thumb wheel (left) until the required aperture appears in the cut-out window on top
of the finder lens. The correct aperture for any pre-selected shutter speed is determined with the built-in exposure
meter (see below).
4.
Focus and determine picture area. See the chapter on "The Reflex Finder".
5.
Release the shutter by gently pressing the release button on the camera front.
The Photo-electric Exposure Meter
The Yashica 44LM has an exposure meter built into the camera top plate with a light reading window (observed from
above through a built-in magnifier) on its right. The reading is converted into aperture/ shutter speeds for the speed of the
film in the camera by an exposure reading scale built into the film transport knob. See the chapter on 'Exposure" for
selection of appropriate aperture/speed pairing. The reading scale is calibrated in ASA film speeds. If the film speed is
known in DIN, a conversion scale from DIN to ASA in the centre of the focusing knob Permits reading off the equivalent
in ASA.
Using the Meter
1.
Set ASA speed of the film used on the exposure setting reading scale in the film transport knob by turning the
inner black disc until the ASA value appears in the cut-out.
2.
Point camera to subject.
3.
Read off the key number to which the needle in the light reading window points.
4.
Set key number (white on red base) opposite its white indicator mark on outer rim of exposure reading scale.
5.
Read off correct aperture opposite the shutter speed required on the opposite side of the ring.
6.
Transfer aperture/shutter speed to camera.
Special Controls
TIME EXPOSURES are made by Setting the shutter to B. The shutter then remains open as long as the release is
depressed. Use a cable release. See the chapter on "Exposure".
FLASH SYNCHRONIZATION. The shutter is XM synchronized and is set to the X or M position by pushing the lever
(with yellow head) behind the aperture thumb wheel to the engraved X or M. See the chapter on "Flash".
SELF-TIMER (delayed action release). This permits the photographer to appear in the picture. Place the camera on a
tripod or other rigid support. Set flash synchronizing lever to X and push down the delayed-action lever (with red head) on
the base of the shutter as far as it will go. On pressing the shutter release, the shutter opens after a delay of approximately
10 sec. The delayed action can be used with all speeds from 1-1/500 sec. If set to B it will release but gives a speed of
approximately 1/60 sec.
It can also be used with flash shots, but only with X synchronization.
