B+W 82mm KSM Circular Polarizer MRC Filter

Circular polarizer filter
99.5% transmission, kaesemann foils
2 to 2.8x filter factor, +1 to 1.5 stops
Helps to eliminate reflections and glare
Reduces haze in landscapes
Greater color and tonal saturation
MRC multi-resistant coating
Schott glass construction
F-Pro brass filter ring
82 mm front filter threads
Plastic filter case for storage
Strongest effect when used at a 90°

Lens Filter Size:: 82 mm

Lens Filter Size:: The size of the filter that fits the lens.

Overview

The B+W 82mm Kaesemann High Transmission Circular Polarizer MRC Filter is constructed from Schott glass, and it helps reduce reflections and glares. It does not allow polarized light to fall upon the lens and produces an increase in saturation and color tonality. The filter has Kaesemann foils that provide 99.5% light transmission, and they are placed between plano-parallel, optical glass surfaces. Each glass surface has multiple layers of anti-reflective coating to eliminate internal ghosting. The 82mm threads are made from brass so that it does not bind to the aluminum housing of the lens. This increases the durability of the filter and also prevents jamming.

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Specifications

Brand
B + W Filters

Detailed Specifications
Front Accessory Thread Size:	82 mm
Front Accessory Thread Size: An adapter that allows threaded accessories to filter kits, such as Lee's Foundation Filter kit. View All Attribute Definitions
Filter Type:	Circular Polarizer
Filter Type: The type of filter for a lens. Filters can be screwed on the front element or dropped in for larger zoom lens. View All Attribute Definitions
Multi-Coated:	Yes
Multi-Coated: A series of optical coatings that are on a lens/filter that help reduce the impact of reflections. The result is a higher transmission percentage of light. All modern lenses are multi-coated. View All Attribute Definitions
Filter Construction:	Schott glass
Filter Construction: This is the construction of a type of filter. The type of process used to create a filter can affect its price. Filters can be constructed out of regular glass that sandwiches a coloured gel in between or in high-end filters, raw elements are added to the molten optical glass so there is no risk of uneven colour or fading. View All Attribute Definitions
Filter Effect:	Eliminates reflections and haze and improves color and tonal saturation
Filter Effect: Allows various filter effects to be done in-camera while shooting. Common filter effects are vivid, neutral, sepia, black and white, negative, cooling, warming, etc... View All Attribute Definitions
Front Lens Cap Size:	82 mm
Front Lens Cap Size: This is the size of a front lens cap. Standard sizes for snap-on lens caps include: 27mm, 28mm, 30mm, 34mm, 37mm, 39mm, 40.5mm, 43mm, 46mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm and 86mm. View All Attribute Definitions
Filter Factor:	2 to 2.8 (1 to 1.5 stops)
Filter Factor: When placed in the optical path, many filters block a certain amount of light from reaching the lens. Filter factor relates to how much exposure compensation is required in order to adjust for this. Most cameras have TTL metering and will be able to do this automatically. View All Attribute Definitions