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Dave Thomas | all galleries >> Photos, Gear, etc., Past & Present >> Active Photo Gear >> Bronica SQ-A >> SQ-A Gear > Dark Slide Interlock
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Dark Slide Interlock

Here we see a composite of the film back with dark slide in and removed enough
to change the interlock (just above unmarked arrow). Note how the silvery pin is
retracted when the slide is out. The tab (marked) on the slide actuates the pin.

Canon EOS 40D ,Canon EF 100mm f/2.8 Macro USM
(E7739/40) 0.3s f/11.0 at 100.0mm iso400 full exif

other sizes: small medium original auto