Sigma 12-24mm F4.5-5.6 EX DG HSM is an Auto Focus (AF)
Wideangle Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Sony Alpha mount cameras.
Lens Mount
Sigma 12-24mm F4.5-5.6 EX DG HSM is compatible with cameras that have
Sony Alpha lens mount. Some of the latest released cameras with Sony Alpha lens mount are
Sony A99 II,
Sony A68 and
Sony A77 II.
Sensor Coverage
Max sensor coverage of Sigma 12-24mm F4.5-5.6 EX DG HSM is
35mm FF.
Focal Range
Sigma 12-24mm F4.5-5.6 EX DG HSM has a focal range of 12-24mm and 2.0X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 18 - 36mm.
Optical Image Stabilization
Sigma 12-24mm F4.5-5.6 EX DG HSM 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 12-24mm F4.5-5.6 EX DG HSM features
Rotary (internal) zoom method where the length of the lens doesn't change while you are zooming in or out. Even though this design has a size disadvantage in general compare to extending designs, it has the benefits of better sealing against dust and moisture, no zoom creep and no weight balance shift while zooming.
Maximum Magnification Ratio
Sigma 12-24mm F4.5-5.6 EX DG HSM has a Max Magnification Ratio of
0.14x and has a minimum focusing distance of
0.28m.
Aperture
Sigma 12-24mm F4.5-5.6 EX DG HSM is a variable aperture lens with a max aperture of f4.5 and a minimum aperture of f22 at 12mm, and a max aperture of f5.6 and minimum aperture of f22 at 24mm .
Optical Formula
Sigma 12-24mm F4.5-5.6 EX DG HSM's optical formula consists of 16 elements in 12 groups.
Related Blog Posts
**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.