Sigma 70-200mm F2.8 EX DG OS HSM is a Fixed aperture Auto Focus (AF)
Telephoto Zoom lens with Optical Image stabilization and 35mm FF max sensor coverage, and it is designed to be used with Pentax KAF3 mount cameras.
Lenses in Pentax KAF3 Mount with Same Focal and Aperture Range
Lens Mount
Sigma 70-200mm F2.8 EX DG OS HSM is compatible with cameras that have Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with the Pentax KAF3 lenses are Pentax K-3 III, Pentax K-1 II and Pentax KP.
Sigma 70-200mm F2.8 EX DG OS HSM is also available in Canon EF , Nikon F (FX), Sony Alpha and Sigma SA mounts.
Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Sigma 70-200mm F2.8 EX DG OS HSM has a maximum diameter of 86mm and total length of 197mm.
Sigma 70-200mm F2.8 EX DG OS HSM has a filter thread of 77mm.
Focal Range
Sigma 70-200mm F2.8 EX DG OS HSM has a focal range of 70-200mm and 2.9X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 105 - 300mm.
Optical Image Stabilization
Sigma 70-200mm F2.8 EX DG OS HSM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Zoom Method
Sigma 70-200mm F2.8 EX DG OS 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 70-200mm F2.8 EX DG OS HSM has a Max Magnification Ratio of 0.13x and has a minimum focusing distance of 1.4m. 0.13x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Aperture
Sigma 70-200mm F2.8 EX DG OS HSM is a fixed aperture lens with a constant max aperture of f2.8 from 70mm all the way to the 200mm .
| Focal Length |
Max Aperture |
Min Aperture |
|
70mm
|
F2.8 |
F22 |
|
200mm
|
F2.8 |
F22 |
Optical Formula
Sigma 70-200mm F2.8 EX DG OS HSM's optical formula consists of 22 elements in 17 groups . Following special elements are used in this design:
- 2 FLD elements
- 3 SLD elements
Lens Hood
Sigma 70-200mm F2.8 EX DG OS HSM comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Body Colour
Sigma 70-200mm F2.8 EX DG OS HSM is available in Black color.
Popular Comparisons of Sigma 70-200mm F2.8 EX DG OS HSM
Here is the eight most popular comparisons of Sigma 70-200mm F2.8 EX DG OS HSM amongst Camera Decision readers.