Canon FT QL - Canon Booster; Technical Data

Canon Booster
A separately available Canon Booster is an auxiliary meter
that is attached to the FT and PELLIX QL for measuring
the subjects under dim lighting conditions.
Technical Data
Light Measuring Range; Using ASA 100 film; EV 2.5
1/4 sec.-EV -3.5 15 sec. at f/1.2.
Measuring Method : Zero-method direct reading type.
Photocell: Utilizes CdS photocell of the camera.
Exposure Time Dial: In the case of FT; 30, 15, 8, 4, 2,
1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60 sec.
Power Sources: For operating meter, use two 1.3v M20
(# 625) mercury batteries.
For illumination of meter indicator window, use one 1.3 v
M20 mercury battery (use the battery removed from the
camera).
Battery Check: Can be checked by the switch.
Size: 65 X 54 X 39mm {2y2" x2ys" x
Weight: 180grams (6% oz.).
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