Tag: chromatic aberration

21 Aug

Is your UV filter screwing up your photos?

Chris Lane / Camera parts, photography, review / / 4 Comments

I recently watched a little video from Kent Weakley about the dangers of using UV filters on your lenses. This is common practice by many photographers for a variety of reasons. It was done partially back in film days because of damage UV rays could do to the film itself. Now I think it is primarily to protect the lens from scratches, bumps, etc. He didn’t seem to go into absolutes on what exactly the effect to your photos would be, so I went ahead and tested it. I took a variety of photos on a 50mm 1.8 Canon lens with a Tiffen UV Protection Filter on a Canon 40D in different situations, with the exact same settings once with the UV filter and once without. This way I could see whether the color, light level, or anything else was affected. I decided to also test my ND filters to see what happened with those. In that case, since ND filters specifically reduce the amount of light into the camera, I only adjusted the shutter speed to compensate. Also, I made sure to clean my lens and filters thoroughly before the experiment. These are my results:
First up, my granary. Shot at ISO 200 1/250 f/3.5
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