Sigma 24-70mm F2.8 EX DG HSM is a Fixed aperture Auto Focus (AF) Standard Zoom
lens with 35mm FF max sensor coverage, and it is designed to be used with Pentax KAF3 mount cameras.
What type of photography is the Sigma 24-70mm F2.8 EX DG HSM lens good for?
The type of photography that you are planning to use the Sigma 24-70mm F2.8 EX DG HSM is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
|Walk Around||Very Good|
Reasons to Buy Sigma 24-70mm F2.8 EX DG HSM Lens
Here, we've included a summary of the advantages and disadvantages of the Sigma 24-70mm F2.8 EX DG HSM lens in a list form to help you determine whether it offers the features you need.
Report a correction
| Distance Scale
| DoF(Depth of Field) Scale
| Hood supplied
| Full-time Manual 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
Buy Sigma 24-70mm F2.8 EX DG HSM from Amazon or B&H PHOTO
| No Weather Sealing
| Lens Extents while zooming
Sigma 24-70mm F2.8 EX DG 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 , and .
Sigma 24-70mm F2.8 EX DG HSM is also available in Canon EF , Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Sigma 24-70mm F2.8 EX DG HSM has a maximum diameter of 89mm and total length of 95mm when not extended . It weighs 790g / 27.9 oz.
Sigma 24-70mm F2.8 EX DG HSM has a filter thread of 82mm.
Sigma 24-70mm F2.8 EX DG HSM has a focal range of 24-70mm 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 36 - 105mm.
Optical Image Stabilization
Sigma 24-70mm F2.8 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).
Sigma 24-70mm F2.8 EX DG HSM features Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Maximum Magnification Ratio
Sigma 24-70mm F2.8 EX DG HSM has a Max Magnification Ratio of 0.19x and has a minimum focusing distance of 0.38m.
Sigma 24-70mm F2.8 EX DG HSM is a fixed aperture lens with a constant max aperture of f2.8 from 24mm all the way to the 70mm .
Sigma 24-70mm F2.8 EX DG HSM's optical formula consists of 14 elements in 12 groups . Following special elements are used in this design:
- 1 ELD glass element
- 2 SLD glass elements
- 3 Aspherical elements
Sigma 24-70mm F2.8 EX DG HSM comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Popular Comparisons of Sigma 24-70mm F2.8 EX DG HSM
Here is the eight most popular comparisons of Sigma 24-70mm F2.8 EX DG HSM amongst Camera Decision readers.