Sony a77II Mode D'emploi page 51

Lens
Name (Model name)
Equivalent 35mm-format
focal length* (mm)
Lens groups/elements
Angle of view*
Minimum focus** (m (ft.))
Maximum magnification (×)
Minimum aperture
Filter diameter (mm)
Dimensions (max. diameter
× height)
(Approx. mm (in.))
Mass (Approx. g (oz.))
* The values for equivalent 35mm-format focal length and angle of view are based
on Interchangeable Lens Digital Camera equipped with an APS-C sized image
sensor.
** Minimum focus is the shortest distance from the image sensor to the subject.
• This lens is equipped with a distance encoder. The distance encoder allows more
accurate measurement (ADI) by using a flash with ADI functionality.
• 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.
• The infinity position provides for some adjustment to compensate for focus shift
caused by change in temperature. To shoot a subject at infinite distance in MF mode,
use the viewfinder and set focus.
On focal length
The picture angle of this camera is narrower than that of a 35 mm-format
camera. You can find the approximate equivalent of the focal length of a
35 mm-format camera, and shoot with the same picture angle, by
increasing the focal length of your lens by half.
For example, by using a 50 mm lens, you can get the approximate
equivalent of a 75 mm lens of a 35 mm-format camera.
DT 16-50mm F2.8 SSM
(SAL1650)
24–75
13–16
83°-32°
0.3 (1)
0.2
f/22
72
81×88
(3 1/4 × 3 1/2)
577 (20 3/8)
Specifications
DT 18-135mm F3.5-5.6
SAM (SAL18135)
27–202.5
11–14
76°-12°
0.45 (1.48)
0.25
f/22-f/36
62
76×86
(3 × 3 1/2)
398 (14)
GB
GB
51