Canon QL FT - Canon Booster

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 read·
ing 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
1.3 v 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 (2)1" x 2~" x 1)1").
Weight : 180 grams (6% oz.).