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Polarizing filters test 2015

1 November 2015
Szymon Starczewski

3. B+W Circular-Pol MRC

Polarizing filters test 2015 - B+W Circular-Pol MRC

Another company with tradition and reputation which has to be defended. In our first test of filters high prices of their products were usually followed by good results but there was one slip-up too. Today we are taking a closer look at 4 filters you can find the current line-up of B+W.



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Results of the test

Transmission and extinction coefficient

Polarizing filters test 2015 - B+W Circular-Pol MRC

  • Red color extinction coefficient: 2.51e-4; Score: 3.5/4
  • Green color extinction coefficient: 3.14e-4; Score: 3.5/4
  • Blue color extinction coefficient: 1.44e-2; Score: 0.5/4
  • Mean transmission of the whole spectrum: 34.52% Score: 1.9/3
    Score: 9.4 / 11 pts
Flares

Polarizing filters test 2015 - B+W Circular-Pol MRC
Without filter

Polarizing filters test 2015 - B+W Circular-Pol MRC
With filter

Score: 7.5 / 7.5 pts

Scattering

Polarizing filters test 2015 - B+W Circular-Pol MRC

  • Luminance: 3.73
    Score: 5 / 5 pts
Vignetting
  • Vignetting difference: 5.59%
    Score: 2.45 / 5 pts
Homogeneity

Polarizing filters test 2015 - B+W Circular-Pol MRC

  • Without reservation
    Score: 5 / 5 pts

Final score: 29.4 / 37.5 pts (78.3%)

  • Overall ranking: 2nd place
  • Econo-ranking: 9th place

Design, usage and summary

Good, broadband coatings, relatively easy to clean, seem to be the only noticeable difference when you compare this filter to the B+W Circular-Pol E. The spectrum characteristics are almost the same as in the B+W Circular-Pol E.