Bolex 581 Sound Macrozoom

marketed in 1977

sound and silent super 8 cartridge

lens: Bolex Macrozoom f: 1.7 \ F: 7.5-60 mm

zooming ratio: 8x

focusing: manual, microprism

macro focusing: yes

zooming: auto and manual

filter size: ?

viewfinder: single-lens reflex with adjustable eyepiece

viewfinder information: exposure meter

exposure: auto and manual exposure control; TTL Electric Eye

exposure compensation: +/- correction for auto

backlight control button: yes

film speed: auto for 25/40 and  100/160 ASA (daylight/tungsten)

ASA notching: 1-pin

CCA filter: built-in, with filter control switch

ND filter: built-in, with filter control switch

shutter opening angle: 150 degrees

fading: auto fade-in/fade-out

filming speed: 18, 36 fps, single frame

sound: single-system, magnetic recording on super 8 film

recording level control: auto and manual

recording level meter: yes

sound sockets: Microphone and Monitor

cue light: yes

interval timer: 1 to 60 second timer

remote control socket: yes, 2.5 mm jack

cable release socket: ?

battery check button: yes

movie light socket: kodak type

microphone bracket mount screw: 1/4"

film counter: yes

handle: fixed, chamber for penlight batteries

battery check button: yes

film drive motor: DC micromotor

power source: 6 x AA batteries only

battery charger outlet: 9 V DC

weight: 1800 g

dimensions: 75 x 225 x 233 mm

tripod socket: 1/4"

made in Japan by Chinon