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
EF 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.
| Autofocus |
| 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 |
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| No Weather Sealing |
| Lens Extends while zooming |
Lens Mount
Sigma 10-20mm F3.5 EX DC HSM is compatible with cameras that have a Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon T8i, Canon 90D and Canon SL3.
Sigma 10-20mm F3.5 EX DC HSM is also available in Pentax KAF3 , Sony Alpha, Sigma SA and Nikon F (DX) mounts.
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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. Below are links to the filters that we recommend you to consider for your Sigma 10-20mm F3.5 EX DC HSM:
Focal Range
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 16-32mm 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).
Alternatively, you can check the Canon 10-18mm f4.5-5.6 IS STM , Tamron 10-24mm F3.5-4.5 Di II VC HLD in Canon EF mount that have similar focal range but features Optical Image Stabilization.
Lenses Similar to Sigma 10-20mm F3.5 EX DC HSM With Optical Image Stabilization
Zoom Method
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.
Below are the 3 Ultra-Wideangle Zoom type Canon1 mount lens alternatives with highest max magnification ratios:
Aperture
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 .
| Focal Length |
Max Aperture |
Min Aperture |
|
10mm
|
F3.5 |
F22 |
|
20mm
|
F3.5 |
F22 |
Optical Formula
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
Lens Hood
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 are the eight most popular comparisons of the Sigma 10-20mm F3.5 EX DC HSM amongst Camera Decision readers.
Top Alternatives of Sigma 10-20mm F3.5 EX DC HSM Lens
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