Great zoom lens with large aperture! Being able to get telephoto with f/2.8 is what I needed and the lens produces great pictures on my Nikon D7000. Build is very solid, zoom and focus rings are smooth. Only issue is its a bit heavy, but what do you expect from lens with this capability.

Consistent Output; Durable; Fast / accurate auto-focus; Nice Bokeh; Strong Construction

Heavy

The build quality of the lens is excellent thanks to high quality materials assembled with very tight tolerances. The broad, rubberized zoom and focus rings operate both very smooth and even slightly damped - a rare characteristic these days.

At first glance, the new Sigma 50-150mm f/2.8 EX DC ($680, street) appears to possess an unusual focal length range. But when you do the math, multiplying by a 35mm lens-conversion factor of 1.4X, it becomes a more familiar-sounding 70-210mm equivalent.

I would like to complete a full Sigma 50-150mm f/2.8 EX DC OS HSM Lens review in the future.

Technical Specifications Lens Construction: 18 Elements in 14 Groups Angle of View: 27.9 ° - 9.5 ° Number of Diaphragm Blades: 9 Blades Minimum Aperture: F22 Minimum Focusing Distance: 100cm / 39.4 inches Maximum Magnification:...

Gary Wolstenholme reviews the bright telephoto zoom from Sigma, the Sigma 50-150mm f/2.8 EX DC APO OS HSM lens.

Excellent sharpness in the centre throughout the zoom range; Good build quality; Constant f/2.8 maximum aperture; Effective optical stabilisation; Good value for money

Performance towards the edges at maximum aperture could be improved; No weather sealing

So which lens you should choose? Sigma 70-200 f/2.8 or Sigma 50-150 f/2.8? First one has better optical performance, especially on APS-C/DX matrix. Astigmatism, vignetting and distortion are well controlled which is not in case of 50-150 model. But all in all advantage of 70-200 is not that big.

poor image quality at the edge for 150 mm; chromatic abberation should be smaller in APO lens; noticable astigmatism for focal length range from 100 to 150 mm; clear vignetting especially at 150 mm; significant front-focus with Canon 20D

I used to be an owner of a Sigma 50-150mm f2.8, before i got Tokina 50-135mm f2.8. Sigma had problems with front focusing, so i sent it back to service. They somehow managed to adjust the focusing, but after using it for a year I sold it, because the image quality of Sigma 50-150mm f2.8 was not...

HSM motor; EX built quality

focusing issues; image quality is just average

The new Sigma APO 50–150mm F2.8 EX DC OS HSM designed especially for APS-C size image sensors is a fast f/2.8 telephoto zoom lens with a focal length equivalent to 75–225mm in 35mm format. Un-boxing it you have the well-padded sturdy case that comes with every Sigma lens in this range.

Fixed f/2.8 aperture; Four stops OS; Pro focal range; Lightweight for a telephoto

Too large for most hobbyists; Only for crop sensor; Vignetting

This telephoto zoom lens for use with APS-C format cameras offers a 3x zoom range equivalent to a 75-225mm lens used on a 35mm camera, a fast constant f/2.8 maximum aperture, silent autofocus and optical stabilisation.