CA Boylan
Sort By: Post Date | Title | Publish Date
Accessories, Lenses
CA Boylan Dec 14, 2012 3 comments
The Sigma APO Macro 180mm F2.8 EX DG OS HSM lens boasts the company’s proprietary Optical Stabilizer (OS) technology and a wide f/2.8 aperture. The OS feature is said to allow the use of shutter speeds approximately four stops slower than would otherwise be possible, enabling handheld, close-up photography.