The addition of this quarter wave plane is to circularly polarize the linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions. These Filters are constructed from Schott glass for increased optical clarity and color fidelity. This filter features a thin brass filter ring to minimize the potential for vignetting while enhancing durability and jamming prevention. To further reduce the possibility of vignetting when this filter is in use, the filter ring's outside diameter is slightly larger than the actual thread size. This may prevent the use of some lens manufacturer bayonet hoods.
Features
- Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
- Polarizing filters arrange, and filter, directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light.
- Clears up haze in distant landscapes and provides more saturated, vivid colors.
- Strongest effect when used at a 90° angle from the sun.
- Circular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features.
- Multi-coated to prevent internal ghosting and reflections while providing over 99.5% light transmission.
- 2 to 2.8x filter factor reduces exposure by 1 to 1.5 stops.
- Constructed from Schott glass for optical clarity.
- Nano coating provides an improved beading effect with water for more efficient cleaning.
- Plastic filter case for storage and transport.
Specifications:
- Filter Type: Circular Polarizer
- Filter: Factor 2 - 2.8 (1 - 1.5 Stop)
- Shape: Circle
- Circular Size: 49 mm
- Front Accessory Thread / Bayonet: 49 mm
- Filter Material: Glass
- Weight : 24 grams
- Warranty: 1 year
- Coatings: Multi-Coating
Kit content
B+W XS-Pro Digital HTC CPL MRC nano 49 filter
User guide
Filter box
Lens cleaning cloth
Packaging Info
- Package Weight 0.095 lb / 45grams
- Box Dimensions (LxWxH) 2.65 x 2.65 x 0.8"