Olympus OM-2 - Flashphoto Group Units

FLASH PHOTO GROUP UNITS
55
• Electronic Flash T20
World's first fully automatic electronic flash unit with
a guide number of 20 (ASA 100, meters). When the OM-2
is set to "AUTO", the T20 automatically functions as a
TTL Centralized Control Flash unit; when the OM-2 is set
to "MANUAL", the T20 automatically functions as a man-
ual flash
unit . Provides charge/auto check viewfinder in-
formation . Can be used as a normal auto/manual flash unit
with the OM-1 and ohter cameras .
• Main Specifications
Un it type: Energy-saving series-circuit type TTL Central-
ized
Control Flash unit (with normal "auto" and "man -
ual" capability).
Guide number: 20 (ASA 100, meter) or 66 (ASA 100, feet).
Angle of coverage: Picture area of 35mm focal-length lens.
Flash
duration: 1/40,000-1/1,000 sec .
Number of flashes: Approx . 120-500 flashes with AA 'pen-
light' alkaline batteries.
Recycling time: Approx . 0.2-10 sec. with AA 'penlight'
alkaline batteries (varies depending on subject distance
on Auto).
Connection to camera: Clip-on type.
Exposure calculator: Reversible plate type CD blank for
Olympus OM-2 (TTL Auto/Manual) ~ calculator for
OM-1 and other cameras (Normal Auto/Manual).
Flash modes: CD OM-2 ... TTL Auto/Manual mode, auto-
matically switched and controlled by OM-2. ® OM-1
. . .
Normal Auto, 2 aperture choices (F4 and F8 at ASA
100) : Manual.
Auto check: Auto check lamp flickers to indicate correct
flash exposure has been made.
Power source: Two 1.5V AA 'penlight' batteries (including
Ni-Cd batteries).
Dimensions : 77(0) x 68(W) x 57(H)mm (3 x 2.7 x 2.2 " )
Weight : 160g (5.6 oz.) less batteries .