Sigma 50-200mm f/4-5.6 DC OS HSM

The Sigma 50-200mm f/4-5.6 is a recently-released lens available in Sigma, Canon, Nikon, Sony and Pentax mounts.

Once unpacked, the first thing that strikes you is the top-notch black matt finish we’re used to seeing on Sigma’s EX range. Build quality is solid too, with a smooth action on both the zoom and focus rings, and this all adds up to a robust lens. The Optical Stabilizer provides an effective four-stops of anti-shake that’s perfect for those without body-mounted stabilisation.
The HSM motor ensures quiet and reasonably fast AF and full performance on cameras without a built-in autofocus motor, but  Pentax owners note this lens is only compatible with supported HSM bodies. There’s an Internal Focusing system too, so use of screw-on filters isn’t a problem and the SLD element and Super Multi-Layer Coatings help to reduce flare and minimise fringeing.


Specification
Street price: £250
Lens mount: Sigma, Canon, Nikon, Pentax, Sony
Max aperture: f/4-5.6
Min aperture: f/22
Minimum focus: 1.1m
Filter size: 55mm
Image stabiliser: Yes
AF/Manual Focus switch: Yes
Autofocus motor: Yes
Lens mount construction: Metal
Distance window: No
Construction: 14 elements in 10 groups
Aperture blades: 8
Dimensions (DxL): 74.4x102cm
Weight: 420g

Visit: www.sigma-imaging-uk.com