UV filters test - supplement
5. Hoya HD UV 67 mm
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After the UV filters of the Hoya concern stormed their way to the podium in the previous test’s ranking, it was obvious that the new series with a very media HD name, so popular currently, will stir up the emotions. However, high expectations are often met with huge disappointment. Let’s check whether the Hoya filter performed up to the scratch.
Test result
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Mean transmission of ultraviolet light 9.7% - Score: 5/10
Mean transmission of visible spectrum light 98.3% - Score: 9/10 Score:
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With filter
Corner - Score: 4/5
Frame centre - Score: 5/5 Frame edge - Score: 5/5 Score:
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As the Hoya HD UV filter, made available for our tests, had a 67 mm thread, it was impossible to measure the vignetting in an authoritative way. Taking into account the fact that this filter has a low profile (slim) there are no reasons to suspect that it behaves differently than other UV low profile (slim) filters. In this category, we decided to grant the average score of other Hoya filters from the previous test. Score: |
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Without reservations
Score:
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Summary:
The filter score is 38/45 (84.4%).**Due to a different diameter, we granted the average score of other UV Hoya filters for vignetting.
Taking into account the previous ranking and omitting the homogeneity score, which wasn’t tested before, the Hoya HD would take 3rd place, ex aequo with B+W 72 mm 010M UV-Haze MRC.
The mechanical resistance is the most prominently displayed feature of the new filters – unfortunately we don’t pay special attention to it in our tests. Those, who use UV filters mainly as lens protectors might enjoy that fact, especially that the filter neither degrades the picture nor causes light loss. The absorption edge is a bit too close to near ultraviolet – it costs the filter 5 points in the appropriate category. The filter should be praised for good, even transmission and reliable anti-reflexive coatings. With such a result, the Hoya HD would deservedly join the podium in the previous UV filters ranking.
The filter was lent courtesy of the Migomex company.
