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Is the Sigma 17 50 a good lens?
At 50mm a very small amount of pincushion distortion can be seen. The Sigma 17-50mm is a very good lens that, while not quite perfect, certainly offers a substantial upgrade over a Standard Zoom kit lens.
What is the best focal length for a prime lens?
On a full frame camera, a 50mm focal length is ideal for everything from architecture to portraiture to landscapes. The standard field of view is pleasing to the eye as well. On a crop sensor camera, a 50mm lens acts like a short telephoto lens, giving you more reach in the 80mm range.
Is Sigma a good lens brand?
The best Sigma lenses offer affordable quality for DSLRs or mirrorless cameras. Sigma has long been a favorite third-party lens company for combining high quality and low price. Whether you shoot Canon, Nikon, Sony, or an L-Mount camera from Leica, Panasonic, or Sigma, Sigma a number of lenses to choose from.
Is the Sigma 17-50mm a good lens?
By 24mm things have improved and by 34mm the Sigma is distortion-free. At 50mm a very small amount of pincushion distortion can be seen. The Sigma 17-50mm is a very good lens that, while not quite perfect, certainly offers a substantial upgrade over a Standard Zoom kit lens.
Which 16-50mm zoom lens should you buy?
The Pentax 16-50mm f/2.8 ED/AL IF (c£610) and Sony DT 16-50mm f/2.8 SSM (£600), meanwhile, are far closer in terms of pricing albeit still slightly more. In addition, the other big third-party lens manufacturers – Tamron and Tokina – also offer a couple of standard zooms with an f/2.8 constant aperture.
How do I override autofocus on the Sigma 17-50mm?
The Sigma 17-50mm ƒ/2.8 OS is designated as an HSM (hypersonic motor) lens, but it doesn’t share the full implementation of what we’ve come to expect from Sigma’s HSM lenses. Specifically, it doesn’t feature full-time manual override, so if you want to override autofocus results you must first disengage the autofocus.
Does the Sigma 17 50 have chromatic aberration?
Chromatic Aberration. The Sigma 17-50mm ƒ/2.8 produces CA of the magenta-green variety, noticeable in areas of high contrast, and predominantly in the extreme corners. It’s mostly significant when the lens is used wide open, though zooming in does appear to limit its presence.