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Old Jan 1, 2013, 2:12 PM   #1
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Default Best lens evaluation target?

For a good all around evaluation of a lens, I use my bookcase with the bindings and jackets of many hues of colors to be the ideal target. For precise tests I use the camera mounted on a tripod with both axes locked for multi-images at various f stops. This also works well for comparing flash vs. ambient illumination comparos. What other targets might work as well?
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Old Jan 1, 2013, 2:53 PM   #2
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http://upload.wikimedia.org/wikipedi...est_target.jpg

http://upload.wikimedia.org/wikipedi...Chart_1956.svg

http://wiki.delt.ae/images/f/f1/GTD_1.jpg

http://www.graphics.cornell.edu/~wes...3-reschart.pdf

http://upload.wikimedia.org/wikipedi...olor_chart.png
This last one is tricky, in that few printers can accurately reproduce the colors in this or any color test chart, so when you take a photo of what you print, you need to compare the shot you took to the original you printed, not the original on the screen. But the process of printing the photo you took of the color test chart will be further limited by your printer's inability to accurately reproduce colors. Got that?

And on top of these, there are the charts I've made myself.
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Last edited by TCav; Jan 1, 2013 at 3:13 PM.
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