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 I placed an old magazine and a shiny miniature thingy on a chair, and took pictures of it... focusing some distance before that target, so it would be out of focus. The idea here is to see how nice out-of-focus backgrounds look with different lenses, i.e., how good their bokeh is. On these tests, on the left side I look for smoothness, lack of lens-generated contrasty patterns, and lack of recognizable patterns; and on the right side I look for plain highlights, without shiny fringes or shiny centers, without color casts, and less bright being better than pretty bright. The camera used was a Canon EOS 550D. I set the white balance manually on each shot, so color differences don't play a role. And I resized the full still image to 1920x1280, and cropped a bit in the middle, which is what you can see down here. These are results with perspective and aperture neutralized: I moved the camera so that the size of the target was the same on all tests (the 35mm was much closer than the 135mm), and also changed how much in front of the target the focusing point was for each focal length and aperture, with the aim that the size of the specular highlights would be the same on all shots, which means the background target should be equally blurred (i.e. this is a comparison of bokeh quality, after neutralizing quantity and perspective). If you want to see how focal length and aperture affect bokeh, head over here. The lenses I have tested are the following: |
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