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
KAF3 Mount cameras.
What type of photography is the Sigma 70-200mm F2.8 EX DG OS HSM lens good for?
The choice of photography type for which you intend to use the Sigma 70-200mm F2.8 EX DG OS HSM is a crucial decision factor. Below, we have assessed its suitability for various photography scenarios:
Lenses in Pentax KAF3 Mount with Same Focal and Aperture Range
Reasons to Buy the Sigma 70-200mm F2.8 EX DG OS HSM Lens
Here we've included a summary of the advantages and disadvantages of the Sigma 70-200mm F2.8 EX DG OS HSM lens in a list form to assist you in determining whether it offers the features you need.
Optical Image Stabilization |
Autofocus |
Distance Scale |
DoF(Depth of Field) Scale |
Hood supplied |
Tripod Collar |
Full-time Manual Focusing |
Internal Focusing |
Fast Aperture at Wide end |
Fast Aperture at Tele end |
Constant f2.8 aperture throughout the range |
Covers Full-Frame Sensor |
9 Diaphragm Blades for Smooth Bokeh |
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Lens Mount
Sigma 70-200mm F2.8 EX DG OS HSM is compatible with cameras that have a Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with the Pentax KAF3 lenses are Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III.
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
The size and weight are crucial factors to consider 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. It weighs 1430g / 50.4 oz.
Sigma 70-200mm F2.8 EX DG OS HSM has a filter thread of 77mm. Below are links to the filters that we recommend you to consider for your Sigma 70-200mm F2.8 EX DG OS HSM:
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
The 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.
Tripod Collar
With a total length of 197mm and a weight of 1430g, the Sigma 70-200mm F2.8 EX DG OS HSM is a large lens. Fortunately, it comes with a tripod collar which you can use to attach the lens directly to a tripod or monopod instead of attaching the camera. This connection helps to better balance the lens/kit combination.
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 compared 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.
Below are the 3 Telephoto Zoom type Pentax KAF mount lens alternatives with highest max magnification ratios:
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 are the eight most popular comparisons of the Sigma 70-200mm F2.8 EX DG OS HSM amongst Camera Decision readers.
Top Alternatives of Sigma 70-200mm F2.8 EX DG OS HSM Lens
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