Sigma 50-500mm F4-6.3 DG EX APO A-mount lens review by Ben
|Ben#3084 date: Dec-18-2007|
flare control: 4
|ownership:||I own this lens|
|compared to:||Tamron 200-400mm f5.6|
|price paid:||1000 USD|
|positive:||range range range !|
just looks awesome
great images in sunny conditions
need a LOT of light
|comment:||I bought this lens to replace my Tamron 200-400, which suffered from zoom creep (the "bigma does have the essential zoom lock), high CA, and had a 200mm starting point.|
On these points, the upgrade was a success. Images are very good, and this flexibility is a boon.
But the "Bigma" suffers from its very slow and rather inaccurate focusing. I tested in on small architectural details, it was fine. But against squirrels, it is way to slow for the cheeky little critters ! That is the main problem for me.
The f6.3 aperture is also restrictive, but who would dare asking for 500mm f4 at this price, not to mention how much it would weight?
Other minor points would be the price of the 86mm UV filter to protect it, and the weight (which is to be expected for a 500mm range).
All in all, I am glad I bought it despite these limitations