They both offer zoom function in the 70mm to 200mm range, f/2.8 wide-open aperture for low-light work, and provide super-quiet auto-focus operation with ...
The lens is very solid and sturdy, yet not very heavy. Focus ring has full throw, rather than the very short throws on zoom lens, which may be why AF is slow.
The Sigma 105mm f/2.8 EX macro has been my all-time favorite lens. It has the capability for me to explore tiny worlds around our environment, which we ...
The Sigma 24-60mm F2.8 EX DG Lense is one of sigma's latest professional lens creations. Although simple in design, the overall lens offers a stunning array of ...
Nov 19, 2019 · That's a good question. In the past, you have the send the lens to Sigma to have the firmware updated. I don't know if there is anyway you can ...
A solid-built ultra wide-angle lens.
Sigma APO 70-200mm F2.8 II EX DG MACRO HSM -- THE lens... Sun, 03 Jan 2010 06:59:03 -0800. Ultra Telephoto Sigma 50-500mm f4-6.3 DG SLR Lens. Sun, 27 Dec 2009 ...
8 all through the zoom range. The Sigma APO 200 to 500mm F2.8 EX DG lens is an exciting product from Sigma that can be used to create amazing images with best ...
The Sigma 20mm f/1.8 D EX DG Aspherical Lens has a clutch-like system for switch between AF and MF modes. The system is very similar to the Sigma 105mm f/2.8 EX ...
Personally, I've encountered auto focus problems with my Sigma AF105mm macro lens ever since I've had it. I find that sometimes AF is completely redundant in ...