Zhumell RF645 manual Specifications, Shutter

7. Specifications

Camera Type	Coupled-meter rangefinder, lens shutter 6 x
	4.5 format camera.
Picture Format	41.5mm x 56mm
Film	16 frames on 120 type film, 32 frames on 220
	type film.
Lens	Interchangeable with Bronica bayonet
	mount, 45mm f/4 Wide, 65mm f/4 Normal
	and 100mm f/4.5 Tele.
Filter Size	58mm (45mm f/4), 58mm (65mm f/4), 62mm
	(100mm f/4.5)
Focusing	Helical focusing system built in to each lens;
Focus ring rotations	90° on 45mm f/4 & 65mm f/4, 60° on 100mm
	f/4.5.
Shutter	Bronica No. 00 type electronically controlled
	lens shutter in each lens, shutter speeds; B, 1
	to 1/500 sec. (on manual without intermedi-
	ate speeds), 8 to 1/500 sec. (on aperture-pri-
	ority AE mode, 1/12-stop increment control)
	8 to 1/750 sec. (on programmed AE mode,
	1/12-stop increment control.) Electronically
	timed self-timer with 10 sec. delay time.
Aperture	Electro-magnet driven aperture blades with
	f/4 to f/32 (45mm f/4 & 65mm f/4), f/4.5 to
	f/32 (100mm f/4.5.)

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