Olympus OM-system Zuiko Auto-1:1 Macro 80mm F4 lens. Preset bellows lens.

The world’s first 35mm SLR lens specifically designed for optimum performance at magnifications around life size.

Range of subject magnifications is ½ to 2x life size, or from 48x72mm to 12x18mm picture area.

Used together with the with telescopic Auto tube 65~116 or Auto Bellows.

Pre-set aperture and stop down metering . Available apertures extend from F4 to F22 to afford a wide depth of field range..

The lens can be attached directly to the camera mount but still needs a bellows or a extension tube.

Angle of view :  9 º ( at high magnification )

Optical construction :  6 elements in 4 groups.

Diaphragm operation : Stop down

F-stop range : 4 ~ 22

Minimum focus :  0,23 m .  ( 9.1 )

Minimum field size :  48 x 72 mm  ( 1.9 x 2.8). 12 x 18mm (0.5x 0.7)

Focusing : with telescopic Auto tube 65~116 or Auto Bellows.

Fine focusing : Straight helicoids.

Weight : 200 grams ( 7.1 )

Length : 46mm  (1.8 )

Maximum diameter : 59mm (2.3 ).

Filter : 49mm.Ø

Focusing screens : 1-4,  1-10 and 1-11.