Sigma 10-20mm F3.5 EX DC HSM is a Fixed aperture Auto Focus (AF) Ultra-Wideangle Zoom
lens with APS-C / DX max sensor coverage, and it is designed to be used with Sigma SA mount cameras.
What type of photography is the Sigma 10-20mm F3.5 EX DC HSM lens good for?
The type of photography that you are planning to use the Sigma 10-20mm F3.5 EX DC HSM is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
Reasons to Buy Sigma 10-20mm F3.5 EX DC HSM Lens
Here, we've included a summary of the advantages and disadvantages of the Sigma 10-20mm F3.5 EX DC HSM lens in a list form to help you determine whether it offers the features you need.
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| Distance Scale
| Hood supplied
| Full-time Manual Focusing
| Fast Aperture at Tele end
| Constant f3.5 aperture throughout the range
| Extreme Wide-angle capability
| Minimum focus distance of 0.24m / 9.4 inch
Buy Sigma 10-20mm F3.5 EX DC HSM from Amazon or B&H PHOTO
| No Weather Sealing
| Lens Extents while zooming
Sigma 10-20mm F3.5 EX DC HSM is compatible with cameras that have Sigma SA lens mount. Some of the latest released cameras that are compatible with the Sigma SA lenses are Sigma SD1 Merrill, Sigma SD1 and .
Sigma 10-20mm F3.5 EX DC HSM is also available in Canon EF , Pentax KAF3, Sony Alpha and Nikon F (DX) mounts.
Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Sigma 10-20mm F3.5 EX DC HSM has a maximum diameter of 87mm and total length of 88mm when not extended . It weighs 520g / 18.3 oz.
Sigma 10-20mm F3.5 EX DC HSM has a filter thread of 82mm.
Sigma 10-20mm F3.5 EX DC HSM has a focal range of 10-20mm and 2.0X zoom ratio which has a 35mm equivalent focal range of 15-30mm when used on a APS-C / DX format camera.
Optical Image Stabilization
Sigma 10-20mm F3.5 EX DC 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 10-20mm F3.5 EX DC 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 10-20mm F3.5 EX DC HSM has a Max Magnification Ratio of 0.15x and has a minimum focusing distance of 0.24m. 0.15x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Sigma 10-20mm F3.5 EX DC HSM is a fixed aperture lens with a constant max aperture of f3.5 from 10mm all the way to the 20mm .
Sigma 10-20mm F3.5 EX DC HSM's optical formula consists of 13 elements in 10 groups . Following special elements are used in this design:
- 1 SLD glass element
- 2 ELD glass elements
- 2 glass mold aspherical elements
- 2 hybrid aspherical elements
Sigma 10-20mm F3.5 EX DC HSM comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Popular Comparisons of Sigma 10-20mm F3.5 EX DC HSM
Here is the eight most popular comparisons of Sigma 10-20mm F3.5 EX DC HSM amongst Camera Decision readers.