Check out this link on UV filters. After a blurb on UV light and its effects, they test the best and score them according to UV ray reduction. One thing that they don’t test is durability… UV Filter Test
This is a superb lens! You can expect extraordinary sharpness right from wide open. Smooth Bokeh and no, and I say again, no chromatic aberrations. The lens distinguishes itself by having excellent separation of the subject from the background, it’s very 3D. Colour contrast is high and images need very little processing when coming from dng files. The lens has a very special look, especially at mid-distances. Close up performance is also very good, due to the floating element. Close up images still retain interesting bokeh as well. Check out the parrot shot below. Vignetting also serves to enhance image quality ( I know that some will disagree), but I really like this lens and its output.
My name is Andrew Gough and I am a travel stock media producer. I produce video and stock photography from all over the world. I have been shooting commercial stock photography for over 20 years, and I have amassed a very large collection of global stock photography. Today, I am now adding stock video as well.