Olympus OM-system S Zuiko Auto-Zoom 35-70mm F3.5-4.5 lens. Compact zoomlens!
Angle of view : 63 º ~ 34º.
Optical construction : 9 elements in 8 groups.
Diaphragm operation : Automatic.
F–stop range : 3.5~22.
Minimum focus : 0.75m ( 2.5 ). At close focusing 0.45m (1.5 )
Minimum field size : 47 x 70cm ( 18.5 x 27.6 ) ~ 25 x 38cm ( 9.8 x 15 )
Focusing : Straight helicoids.
Zooming : Rotating zoom ring.
Weight : 190 grams ( 6.7 )
Length : 51mm ( 2.0 )
Maximum diameter : 62mm ( 2.4 )
Filter size : 49mm.Ø screw-in.
Notes : The is a51mm slip-on type. Filter diameter is 49mm .
Suitable focusing screens : 1-1,1-2,1-3, 1-4, 1-5,1-6, 1-8, 1-10, 1-13 and 1-14.
An extra ordinary light and compact zoom only 51mm long , and 190 grams. Adopts a 3-group type zoom mechanism in which the front two groups move to change the focal length. Although the lens has a variable open aperture value, when it is stopped down to F4.5 or more aperture remains constant throughout the zooming range. Superbly convenient handling, and wide-angle to short telephoto range, make this an excellent lens for general use. The zoom function is ideal for precise spot meter readings.