Sigma 500mm F4.5 EX DG HSM is an Auto Focus (AF)
Telephoto Prime lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF mount cameras.
Lens Mount
Sigma 500mm F4.5 EX DG HSM is compatible with cameras that have
Pentax KAF lens mount. Some of the latest released cameras with Pentax KAF lens mount are
Pentax K-3 III,
Pentax K-1 II and
Pentax KP.
Sensor Coverage
Max sensor coverage of Sigma 500mm F4.5 EX DG HSM is
35mm FF.
Focal Range
Sigma 500mm F4.5 EX DG HSM has a fixed focal lenght of 500mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 750mm.
Optical Image Stabilization
Sigma 500mm F4.5 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).
Maximum Magnification Ratio
Sigma 500mm F4.5 EX DG HSM has a Max Magnification Ratio of
0.13x and has a minimum focusing distance of
4m.
Aperture
Sigma 500mm F4.5 EX DG HSM has a max aperture of F4.5 and a minimum aperture of F32.0.
Optical Formula
Sigma 500mm F4.5 EX DG HSM's optical formula consists of 11 elements in 8 groups.
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