3M 7100 Synchro Zoom

marketed in 1973

silent super 8 cartridge

lens: interchangeable lenses

basic lens: Shinkor Zoom f: 1.8 \ F: 6.5-65 mm

focusing: manual, split image

zooming: auto (with 2 speeds) and manual

filter size: ?

viewfinder: SLR with adjustable eyepiece

viewfinder information: exposure meter, battery check lamp, film advance indicator

exposure: auto and manual exposure control; TTL Electric Eye

film speed: auto between 25 and 250 ASA

CCA filter: built-in 85A filter

fading: auto and manual fade-in/fade-out

filming speed: 18, 24, 36 fps, single frame

sound: no

remote control socket: yes

movie light socket: screw type

flash synchronization terminal: yes

film counter: yes

handle: detachable

battery check button: yes

film drive motor: DC micromotor

power source: 4 x AA penlight batteries or Ni-Cd 1.25 V batteries

external power jack: 6 V DC for recharging Ni-Cd batteries

weight: 1573 g

dimensions: ?

tripod socket: 1/4"

made in Japan by Shinsei Optical