Sigma 18-200mm F3.5-6.3 DC 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.
Lenses in Sony Alpha Mount with Same Focal and Aperture Range
Lens Mount
Sigma 18-200mm F3.5-6.3 DC is compatible with cameras that have
Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are
Sony A68,
Sony A77 II and
Sony A58.
Sensor Coverage
Max sensor coverage of Sigma 18-200mm F3.5-6.3 DC is
APS-C / DX.
Focal Range
Sigma 18-200mm F3.5-6.3 DC has a focal range of 18-200mm and 11.1X zoom ratio.
Optical Image Stabilization
Sigma 18-200mm F3.5-6.3 DC 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
Sigma 18-200mm F3.5-6.3 DC 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
Sigma 18-200mm F3.5-6.3 DC 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
Sigma 18-200mm F3.5-6.3 DC has a Max Magnification Ratio of
0.23x and has a minimum focusing distance of
0.45m.
Aperture
Sigma 18-200mm F3.5-6.3 DC 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 f6.3 and minimum aperture of f40 at 200mm .
Optical Formula
Sigma 18-200mm F3.5-6.3 DC's optical formula consists of 15 elements in 13 groups.
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