Sigma 105mm F2.8 EX DG Macro is an Auto Focus (AF)
Macro Prime lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF mount cameras.
Lens Mount
Sigma 105mm F2.8 EX DG Macro 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 105mm F2.8 EX DG Macro is
35mm FF.
Focal Range
Sigma 105mm F2.8 EX DG Macro has a fixed focal lenght of 105mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 157.5mm.
Optical Image Stabilization
Sigma 105mm F2.8 EX DG Macro 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 105mm F2.8 EX DG Macro has a Max Magnification Ratio of
1x and has a minimum focusing distance of
0.31m.
Aperture
Sigma 105mm F2.8 EX DG Macro has a max aperture of F2.8.
Optical Formula
Sigma 105mm F2.8 EX DG Macro's optical formula consists of 11 elements in 10 groups.
**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.