Sigma AFI960 EX DG 86mm Single-Coated Circular Polarizer Filter
From Sigma Corporation of America
Sigma is pleased to announce the launch of the SIGMA EX DG range of filters which is optimized for digital SLRs. These filters benefit from a super multi-layer lens coating developed to counteract the highly reflective characteristics of digital image sensors reducing both flare and ghosting. Black rimmed glass eliminates unnecessary internal reflections.
Brand: Sigma Model: B000FG6COC Released on: 2006-05-04 Dimensions: 3.10" h x 3.10" w x .25" l, 1.00 pounds
The Sigma AFI960 EX DG 86mm Single-Coated Circular Polarizer Filter is used to select which light rays enter your camera lens, and which light rays are reflected. This lens can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast. This effect can be seen through the viewfinder, and changed by rotating the filter, while the factor varies according to how the filter is rotated and its orientation to the sun. The Sigma AFI960 filter eliminates ultraviolet rays to remove haze from outdoor shots, as well as polarizing the light to remove reflections and increase color saturation, without affecting the overall color balance. This single-coated circular polarizer has an 86-millimeter thread size, and a filter factor between 2.3 and 2.8, which is approximately 1.3 f/stops. The AFI960 is constructed of high-quality optical glass, and is backed by a manufacturer's 1-year warranty.
Made A Difference I recently upgraded my camera lens, investing a good amount in the new lens. I used the lens without the "filter", then with the "filter". I could really see the difference in my photo's with the filter. My photo's have more definition. I am very pleased with the Sigma filter. It definetly makes a differnce using a filter. Most of all, it protects the lens. I would recommend the Sigma filter.
