Sony DT 18-135mm F3.5-5.6 SAM is an Auto Focus (AF)
SuperZoom lens with APS-C / DX max sensor coverage and it is designed to be used with Sony Alpha mount cameras.
Lens Mount
Sony DT 18-135mm F3.5-5.6 SAM is compatible with cameras that have
Sony Alpha lens mount. Some of the latest released cameras with Sony Alpha lens mount are
Sony A68,
Sony A77 II and
Sony A58.
Sensor Coverage
Max sensor coverage of Sony DT 18-135mm F3.5-5.6 SAM is
APS-C / DX.
Focal Range
Sony DT 18-135mm F3.5-5.6 SAM has a focal range of 18-135mm and 7.5X zoom ratio.
Optical Image Stabilization
Sony DT 18-135mm F3.5-5.6 SAM doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Zoom Method
Sony DT 18-135mm F3.5-5.6 SAM features
Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Zoom Lock
Sony DT 18-135mm F3.5-5.6 SAM has a
Zoom lock feature which eliminates Zoom creep where focal length of the lens changes with gravity when it's held downwards or upwards.
Maximum Magnification Ratio
Sony DT 18-135mm F3.5-5.6 SAM has a Max Magnification Ratio of
0.25x and has a minimum focusing distance of
0.45m.
Aperture
Sony DT 18-135mm F3.5-5.6 SAM is a variable aperture lens with a max aperture of f3.5 and a minimum aperture of f22 at 18mm, and a max aperture of f5.6 and minimum aperture of f32 at 135mm .
Optical Formula
Sony DT 18-135mm F3.5-5.6 SAM's optical formula consists of 14 elements in 11 groups.