The Olympus IS-1 was an automatic, 35mm, film camera launched in 1987 by Olympus of Japan. The IS-1 featured an automatic built-in folding flash, LCD display panel, and motorized film advance. In order to take a continuous series of pictures, one had to press the shutter release button all the way down. The Olympus IS-1 was also fitted with autofocus with focus lock and AF illuminator. When shooting in extremely dim light, the AF illuminator on front of the camera would emit a beam of infrared light to measure de distance to the subject and assist in the autofocus operation. The IS-1 was equipped with a Olympus 35-135mm f/4.5 f/5.6 zoom lens, which was made of 16 elements arranged in 15 groups. The camera was powered by two 3V lithium batteries (CR123A or DL123A).
Specifications for the Olympus IS-1
Type: electronic, 35mm, film camera
Lens: Olympus 35-135mm f/4.5 f/5.6 zoom lens
Shutter: electronically-controlled, vertical-travel, focal plane shutter
Shutter speeds: stepless from 1/15th to 1/2000th of a second, plus B
Focusing: autofocus with focus lock
Viewfinder: autofocus frame, spot frame, autofocus indicator, flash indicator, and shutter indicator; single lens reflex system; magnification ratio 0.75 at 50mm