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Polarizing filters test 2015

1 November 2015
Szymon Starczewski

16. Hoya Fusion Antistatic CIR-PL

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL

Hoya Fusion is the newest filter series of a well-known Japanese producer and we were very curious how they fare so we decided to test one of them.


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Results of the test

Transmission and extinction coefficient

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL

  • Red color extinction coefficient: 1.06e-4; Score: 3.5/4
  • Green color extinction coefficient: 1.35e-4; Score: 3.5/4
  • Blue color extinction coefficient: 7.35e-3; Score: 1/4
  • Mean transmission of the whole spectrum: 33.45% Score: 1.69/3
    Score: 9.69 / 11 pts
Flares

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL
Without filter

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL
With filter

Score: 7.5 / 7.5 pts

Scattering

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL

  • Luminance: 0.80
    Score: 5 / 5 pts
Vignetting
  • Vignetting difference: 4.59%
    Score: 3.01 / 5 pts
Homogeneity

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL

  • Without reservation
    Score: 5 / 5 pts

Final score: 30.2 / 37.5 pts (80.5%)

  • Overall ranking: 1st place
  • Econo-ranking: 1st place

For winning in both our rankings we decided to award this filter the following distinctions:

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL

Polarizing filters test 2015 - Hoya Fusion Antistatic CIR-PL

Design, usage and summary

The broadband layers are easy to clean. A very good ring, screwed-on, works evenly and easily, with an audible but slight whirr. It is a bit similar to frames used in Marumi filter system. A quite low profile and a narrow ring for unscrewing. Well-made and assembled with care.

Similar spectrum characteristics we observed in the cases of the Marumi FIT+SLIM Circular PL, the Zeiss T*, the B+W Circular-Pol E, the B+W Circular-Pol MRC and the Hoya CIR PL filters. The Hoya’s curves are the most similar. The filter works in infrared almost up to 900 nm and has excellent extinction coefficients for green and red; flat characteristics could be observed up to red where the transmission value increases significantly.