Most helpful critical review
67 of 69 people found the following review helpful
Only for small aperture lenses/settings
on August 6, 2010
I don't like using unnecessary filters on my lenses (I have a B+W CPL as the only other filter I use), but I wanted to protect my 10-22mm without spending a ton. I wanted to give this multi coated filter a shot for its incredibly low price. After receiving this, I did a bunch of RAW tests with and without the filter in bright sunlight and with the bright sun in the pictures, and I could not see any perceptible difference between having the filter on or off. If anything, there was very minor improvement with the filter on (this was on a hazy evening and pixel peeping at 100%). There is no vignetting at 10mm. Excellent value.
I tested this Zeikos on my large aperture Sigma 50mm f/1.4 @ f/1.4 with a light source in the picture frame and I found prominent halo and internal reflections with this filter on. My Hoya MRC filter showed no haze or internal reflections and was indistinguishable from no filter on. As a result, I have decided to downgrade my recommendation for this filter to average. This is not a filter to be used on large aperture lenses with significant light sources in the picture frame.