Reviews and Problems with Sigma APO 50-500mm F4-6.3 EX DG /HSM
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Sigma APO 50-500mm F4-6.3 EX DG HSM Lens Review
SLR Lens and Camera Reviews
6 June 2009
Summary: Sigma APO 50-500mm f//4-6.3 EX DG HSM does not really grab any stars from the sky (metaphorically speaking), but for an ultra long zoom lens this does not come as a surprise. What you get is a decent 50-200mm and an average (or subpar, depending on your demands) 300-500mm zooms in one package that sports outstanding build quality and does not break your bank account.
Conclusion: The ability of this lens to frame subjects with all their surroundings as well as an ability to pick out distant objects without moving your feet or changing lenses does have its attractions. The enormous standard to ultra-telephoto range of the lens, along with a decent performance and almost total lack of distortion makes this one well worth considering. If you are travelling and don’t want a sack-full of lenses it becomes almost indispensable!
Pros: Good build quality, Excellent focal range, Well controlled distortion and CA, Good value for money.
Cons: A bit of a lump to carry all day., Slightly softer than shorter zooms (but not much!), Only a single socket on the tripod mount.
Megazoom, The Sigma 50 to 500mm f4 to 6.3 APO Tele Zoom Lens
1 January 2001
Excerpt: A long 10x zoom range is typically found on better movie cameras and camcorders--but rarely is offered for still photography. Available now from Sigma, the new Sigma 50-500mm f/4-6.3 APO produces the kind of crisply detailed images you would expect from a topnotch, well-corrected APO zoom lens. It is rather large and heavy, and can't be considered a general purpose lens for handheld use at its shorter focal lengths.