Olympus OM system Zuiko Auto-Macro 135mm F4.5 lens. Bellows / Extension tube version.

Specifications Zuiko Auto-Macro 135mm F4.5 lens.  Bellows / Extension tube version.

Angle of view :  18 º ( in general photography )

Optical construction :  5 elements in 4 groups.

Diaphragm operation :  Automatic.

F-stop range : 4.5 ~ 45

Minimum focus :  0.6 m .  (  2.4 )

Minimum field size :  48 x 72 mm  ( 1.9 x 2.8).

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

Fine focusing : Straight helicoids.

Weight : 320 grams (  11.3 )

Length : 47mm  (1.9 )

Maximum diameter : 67mm (  2.4 ).

Filter : 55mm.Ø

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

Note : The lens can not be attached directly to the camera mount. Hood is a 57mm diameter slip-on type . Filter diameter is 55mm.

Used together with Auto Bellows or Telescopic Auto Extension Tube 65-116mm for subjects ranging from medical close-ups to outdoor action photography.

Especially when used with the with telescopic Auto tube 65~116 ,provides automatic diaphragm control as with an ordinary lens. Optimum design performance is around 0.2x magnification. Maximum subject magnifications are 0.43x with telescopic auto extension tube 65-116 or life size with auto bellows 1. The wide photographic range of the lens allows it to be used as a regular 135mm telephoto fore general photography. A helicoids is provided for fine focusing.