Read Sony SAL20F28 (serv.man2) Service Manual online
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SAL20F28 (2.8/20) (20mm F2.8)
SPECIFICATIONS
• Depending on the lens mechanism, the focal length may change with any change of the shooting distance. The focal length assumes the lens is focused
at infinity.
Equivalent 35mm-format focal length
*
1
(mm)
30
*
*
1
The value for equivalent 35mm-format focal length is based on Digital Single Lens Reflex Cameras equipped with an APS-C sized image sensor.
Lens groups elements
9-10
Angle of view 1
*
1
94
°
Angle of view 2
*
1
70
°
*
2
The value of angle of view 1 is based on 35mm-format cameras, and that of angle of view 2 is based on Digital Single Lens Reflex Cameras
equipped with an APS-C sized image sensor.
equipped with an APS-C sized image sensor.
Minimum focus (m (feet))
*
3
0.25 (0.8)
*
*
3
Minimum focus is the shortest distance from the image sensor to the subject.
Maximum magnification (
×××××
)
0.13
Minimum f-stop
f/22
Filter diameter (mm)
72
Dimensions (maximum diameter
×××××
height) (mm (in.))
Approx. 78
× 53.5 (3 1/16 × 2 1/8)
Mass (g (oz.))
Approx. 285 (10 5/16)
Included items
Lens (1), Front lens cap (1), Rear lens cap (1), Lens hood (1), Set of printed documentation
Designs and specifications are subject to change without notice.
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