UV filters, unscientific test

Started 5 months ago | Discussions thread
Bing Chow Senior Member • Posts: 2,523
Re: Test @ 200mm

Michael Fryd wrote:

The usual situations to examine are setups where there are lights in, or near, the field of view. Shooting a model with the sun setting behind her (or rim lighting in a studio) is a good thing to test. Shooting products against an overly lit, maxed out, white background is another.

When comparing the with and without images, you should find that sharpness is rarely the factor. The most common issue is flare. This typically manifests as "ghost images", or an overall loss of contrast (veiling flare).

Excellent point. I've only briefly tested for flare and I was unable to discern that the filter made existing flare worse. I don't have too much data points beyond that.

I also wanted to test my filters on longer focal lengths, as sybersitizen suggested. The last time I did testing was with 85mm.

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