Introduced a year after the Pellix, the FT QL had a normal quick-return reflex mirror and stop-down TTL metering. The finder's condenser lens was cut at a 45-degree angle. Twelve percent of the image area surface was semi-silvered with vapor deposition. The incident light reflected by this semi-transparent mirror was directed to the metering element. The viewfinder had match-needle exposure metering. The distance to the metering element was the same as the distance to the focal plane. Therefore the camera had the same focal plane metering characteristics as the Pellix. The Canon Booster for low-light metering down to EV 3.5 (23 sec. at f/1.4) was available as an optional accessory attachable to the accessory shoe. Lens Mount FL mount Shutter Two-axis, horizontal-travel focal-plane shutter with cloth curtains. X, T, 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000 sec. Built-in self-timer (self-timer lever also functions as a stop-down lever). Flash Sync FP- and X-sync automatic-switching sync contacts with German socket. Viewfinder Fixed eye-level pentaprism. 0.9x magnification (FL 50mm), 92% vertical coverage, 94% horizontal coverage. Microprism rangefinder at center of fresnel matte screen. Metering indicator and exposure match needle provided. A diagonally-cut condenser lens block is semi-silvered on the diagonal surface. This beam splitter enables the incoming light to be split for the viewfinder image and metering cell. Exposure Control CdS cell for TTL stopped-down match needle partial metering at center (12% of center). Metering range at ISO 100: EV 3 – 18. Film speed range from ISO 25 to 2000. 1.3 V MD mercury cell power source. Battery check feature provided. *Optional Canon Meter Booster for metering in low light (down to EV -3.5). Film Loading & Advance QL (Quick Loading) and auto loading after camera back is closed. Advances with camera-top lever's 174° stroke (partial strokes enabled). Ready position at 21°. Frame Counter Counts up. Resets automatically when camera back is opened.