The B&W 52mm Kaeseman Circular Polarizing Multi-Resistant Coating (MRC) Filter (Slim) is constructed from select polarizer foils and especially prepared optical glass. Kaeseman ("encased") filters are completely edge-sealed for maximum durability under extreme climatic conditions.
Polarizing filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast.The effect can be seen through the viewfinder and varied by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the sun.
The reputation of B+W's Schott glass is world renowned. The high production standards combined with a sturdy brass filter ring make B+W filters hard to beat. These filters have a "heft" to them that is impressive. They may feel heavier but the benefit is in the construction and results. Not only is the glass exceptional but so is the seal between the ring and glass. Schott Glass used in the manufacture of this filter is legendary and synonymous with the highest standards of filter production. It comes with a solid 10-year warranty.
B&W slim filters are for wide-angle lenses and are 3mm thick. They do not have a front thread.
Note! Circular polarizers are specifically designed for use with auto-focus SLR cameras (They will also work on manual systems without problems)
| Type | Kaeseman Circular Polarizer |
| Size | 52mm (Slim) |
| Grade | Not Applicable |
| Filter Factor | Between 2.3 and 2.8 (approx. +1.3 stops) |
| Multi-Coated | Yes, Multi-Resistant Coating (MRC) |
| Rotating | Yes |
| Effect | Removes reflections and increases color saturation without affecting the overall color balance |
| Application | Well-suited to applications that require the highest possible imaging quality, especially with high-speed telephoto lenses and apochromatic lenses; also an excellent choice when temperature extremes are experienced |
| Color Temperature | Not Applicable |
| Construction | Schott Glass |
| Front Filter Thread Size | Not Applicable |
| Front Lens Cap Size | Not Applicable |
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Pros
Cons
Best Uses
Comments about B+W 52mm Kaeseman Circular Polarizing Multi-Resistant Coating (MRC) (Slim) Filter:
B+W's build quality is superb. The adjustment ring turns without resistance and stays put when released. The filter coating eliminates flare and is relatively easy to clean.
This filter is slim, but not tiny. I have average sized hands and I think it's just right.
Image quality is untouched.
Pros
Cons
Best Uses
Comments about B+W 52mm Kaeseman Circular Polarizing Multi-Resistant Coating (MRC) (Slim) Filter:
This filter has excellent build quality and optical performance. However, the cap is a slip-on type and isn't very snug. A light bump or brush against something can cause it to pop off and be lost. I would recommend using some sort of cap lanyard/leash. The advantage is the slim profile for wide angle lenses.
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