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.

Disclaimer: Disassembling your lens will void the manufacturer warranty and may cause your lens to become inoperable. Do so at your own risk. I will not be held ...

Nov 19, 2019 · Sigma 105mm EX DG Macro - anyone know how to update the firmware and where can I get a copy of the firmware ?

A solid-built ultra wide-angle lens.

The auto-focus mechanism on this lens is based on Canon's micro motor. It is noisy and doesn't sound very smooth. In low-light and low-contract situation, it ...

Sigma APO 70-200mm F2.8 II EX DG MACRO HSM - To Buy or Not? Sat, 06 Mar 2010 21:42:12 -0800. High ratio Sigma APO 150-500mm F5-6.3 DG OS HSM lens. Sun, 28 Feb ...

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 ...

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 ...

Sony DSC-H20 display an error message: This Memory Stick may not record or play. I just bought a new camera model Sony DSC-H20 and Sony memmory stick as ...