Olympus A310 flash unit with bouncegrip 1 and TTL auto shoe cord.

Specifications Olympus A310 flash unit.
Type : Energy saving series – circuit type TTL automatic exposure System electronic flash unit.
Guide number : 34 at peak (ASA 100)m) or at peak (ASA 25,ft)
Coverage angle : 50º vertical 80º horizontal.
Flash duration : 1/40—1/1000 sec.
Recycling time : 0.2 •-12 sec. with 4 alkaline batteries.
Flashes per set of batteries : 100~over 400 on TTL Auto and Normal Auto.
Color temperatures: 5.800 º Kelvin.
Conection to camera : Mechanical clip-on type (via accessory shoe) or grip type via bounce grip.
Electrical : Direct contact ( hot shoe) or via auto cord or sychro cord.
TTL Auto : aperture setting Continuous accords with aperture ring setting of camera-linked lens.
Working range : 0.25—23m (ASA100 F1.2 lens) with –self-setting distance scale.
TTL Auto Check : Neon-flicker ( aprox 5 secs after flash.)
Bounce flash : Bounce grip + TTL auto cord 0.6 m.
Normal Auto : apperture setting ; choice of 3 apertures ( F4,F5.6 and F8 at 100 ASA). Normall auto sensor acceptance angle : 20º. Working range : 0.5 – 8.5 meter (ASA100) with self-setting distance scale. Auto Check : Neon-flicker ( aprox 5 secs after flash.) Bounce- flash ; Bounce grip + remote sensor.
Manual Flash Guide Numbers : H1-34 Low—17 (ASA100).
Test button for Normal auto check & open flash : push button type ( for non TTL auto only).
Power source options : 1. Self-contained 1.5v AA penlight battery 4x . 2. 1.5 v C battery x4 in bouncegrip. 3. Layer battery 315 volt power pack. 4. AC house current via F.AC. adapter. Combination 1,2,3 or 1,2,4 compateble.
Size and weight: 99 x 80 x 73 mm. 330 grams les batteries.
This Flash unit was specialy made fore TTL use with the OM-2 with out the N. It will give TTL exposure with this model.
Bounce grip 1.
The bounce grip serves as a holder for Bounce flash operations and as a battery holder for the quick auto 310 flash unit.
Type : Bounce grip / battery holder with bracket .
Batteries : 1.5volt C batterie. 250/1000 flashes per set.
Recycling time with C batteries : 0.2—8sec.
Size: 164x 72x40mm
Weight : 200gram without the batteries.