LensTip.com

Articles

Polarizing filters test 2015

1 November 2015
Szymon Starczewski

7. Benro SD CPL-HD WMC

Polarizing filters test 2015 - Benro SD CPL-HD WMC

That make is rather associated with tripod stands, bags and backpacks than with filters. Still they have gathered a lot of positive opinions although the company comes from China. Taking into account the high quality of their equipment you simply have to take a closer look at their filters - we chose 4 models from different segments for our test.



Please Support Us

The coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites. Still, we are now aware it might be impossible without additional financial help. That's why we would like to ask all those who visit, read, and care about Optyczne.pl, LensTip.com i Allbinos.com for support - it's enough you send us a small sum of money via PayPal. If a lot people decide to support our websites we think we'll stand a chance and survive next months without any lasting harm. We count on your support and understanding, stay safe and be healthy.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Results of the test

Transmission and extinction coefficient

Polarizing filters test 2015 - Benro SD CPL-HD WMC

  • Red color extinction coefficient: 3.94e-2; Score: 0.5/4
  • Green color extinction coefficient: 6.72e-4; Score: 3/4
  • Blue color extinction coefficient: 7.40e-3; Score: 1/4
  • Mean transmission of the whole spectrum: 43.6% Score: 3/3
    Score: 7.5 / 11 pts
Flares

Polarizing filters test 2015 - Benro SD CPL-HD WMC
Without filter

Polarizing filters test 2015 - Benro SD CPL-HD WMC
With filter

Score: 4.5 / 7.5 pts

Scattering

Polarizing filters test 2015 - Benro SD CPL-HD WMC

  • Luminance: 56.72
    Score: 3.45 / 5 pts
Vignetting
  • Vignetting difference: 2.04%
    Score: 4.42 / 5 pts
Homogeneity

Polarizing filters test 2015 - Benro SD CPL-HD WMC

  • Minimal streakiness
    Score: 4.75 / 5 pts

Final score: 24.6 / 37.5 pts (65.7%)

  • Overall ranking: 11th place
  • Econo-ranking: 18th place

Design, usage and summary

A slim ring filter with the ring glued or pressed in. With such a slim mount the resistance of the movement could have been a bit smaller but the work is still even and smooth. The elements are slotted very well together. The surfaces are similar to those from the PD model – they are comfortable to clean on the outside but rather difficult to clean on the inside. Overall the filter makes a solid impression.

The spectrum characteristics are similar to those of the previous model. There is a small tendency for warming of the colours; the extinction coefficient is good for green but less good in the areas of short-wave and long-wave.