Sigma 18-125mm F3.8-5.6 DC OS HSM is a Variable aperture Auto Focus (AF)
Superzoom Zoom lens with Optical Image stabilization and APS-C / DX max sensor coverage, and it is designed to be used with
SA Mount cameras.
What type of photography is the Sigma 18-125mm F3.8-5.6 DC OS HSM lens good for?
The type of photography that you are planning to use the Sigma 18-125mm F3.8-5.6 DC OS HSM is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
Reasons to Buy Sigma 18-125mm F3.8-5.6 DC OS HSM Lens
Here we've included a summary of the advantages and disadvantages of the Sigma 18-125mm F3.8-5.6 DC OS HSM lens in a list form to help you determine whether it offers the features you need.
| Optical Image Stabilization |
| Autofocus |
| Distance Scale |
| Hood supplied |
| Focus Distance Limiter |
| Zoom Lock |
| Versatile Lens with a Zoom Ratio of 6x |
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| No Weather Sealing |
| Lens Extends while zooming |
| Slow Aperture at Tele end |
| Variable Aperture |
Lens Mount
Sigma 18-125mm F3.8-5.6 DC OS HSM is compatible with cameras that have a 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 18-125mm F3.8-5.6 DC OS HSM is also available in Canon EF 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 18-125mm F3.8-5.6 DC OS HSM has a maximum diameter of 74mm and total length of 89mm. It weighs 490g / 17.3 oz.
Sigma 18-125mm F3.8-5.6 DC OS HSM has a filter thread of 67mm. Below are links to the filters that we recommend you to consider for your Sigma 18-125mm F3.8-5.6 DC OS HSM:
Focal Range
Sigma 18-125mm F3.8-5.6 DC OS HSM has a focal range of 18-125mm and 6.9X zoom ratio which has a 35mm equivalent focal range of 27-187.5mm when used on a APS-C / DX format camera.
Optical Image Stabilization
The Sigma 18-125mm F3.8-5.6 DC OS HSM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.
Zoom Lock
Sigma 18-125mm F3.8-5.6 DC OS HSM has a Zoom lock feature which eliminates Zoom creep where focal length of the lens changes with gravity when it's held downwards or upwards.
Maximum Magnification Ratio
Sigma 18-125mm F3.8-5.6 DC OS HSM has a Max Magnification Ratio of 0.26x and has a minimum focusing distance of 0.35m. For a non-macro lens, the 0.26x is considered a high magnification and will come handy for close-up shots.
Below are the 3 Superzoom Zoom type Sigma SA mount lens alternatives with highest max magnification ratios:
Aperture
Sigma 18-125mm F3.8-5.6 DC OS HSM is a variable aperture lens with a max aperture of f3.8 and a minimum aperture of f22 at 18mm, and a max aperture of f5.6 and minimum aperture of f36 at 125mm .
| Focal Length |
Max Aperture |
Min Aperture |
|
18mm
|
F3.8 |
F22 |
|
125mm
|
F5.6 |
F36 |
Optical Formula
Sigma 18-125mm F3.8-5.6 DC OS HSM's optical formula consists of 16 elements in 12 groups . Following special elements are used in this design:
- 2 SLD (Special Low Dispersion) glass elements
- 1 molded glass aspherical
element 2 hybrid aspherical elements
Lens Hood
Sigma 18-125mm F3.8-5.6 DC OS HSM comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Popular Comparisons of Sigma 18-125mm F3.8-5.6 DC OS HSM
Here are the eight most popular comparisons of the Sigma 18-125mm F3.8-5.6 DC OS HSM amongst Camera Decision readers.
Top Alternatives of Sigma 18-125mm F3.8-5.6 DC OS HSM Lens
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