lens testing chart

gtc

http://www.graphics.cornell.edu/~west … schart.pdf

useful download-needs to be a3 or bigger though

David_S85

gtc wrote:

http://www.graphics.cornell.edu/~west … schart.pdf

useful download-needs to be a3 or bigger though

Link no good.

Shay Stephens

Link no worky

gtc wrote:

http://www.graphics.cornell.edu/~west … schart.pdf

useful download-needs to be a3 or bigger though

gtc

here is working link to test chart
http://www.graphics.cornell.edu/%7Ewestin/misc/ISO_12233-reschart.pdf

Richard

gtc wrote:

http://www.graphics.cornell.edu/%7Ewestin/misc/ISO_12233-reschart.pdf

OK, got it. But I really don't have a clue how to use it. What am I supposed to look for under what conditions? Anyone have a link to some instructions?

Cheers,

Shay Stephens

You use it to test your lenses and or cameras. So for example, set the target on the wall and place the camera 10 feet away (or whatever works for you) on a tripod with good light illuminating the target. Take a picture using each lens you have and compare the results.

Try using different apertures to determine which aperture is the sweet spot of sharpness.

For an idea of how others use it check out this link:
http://www.dpreview.com/reviews/canoneos5d/page31.asp

rsinmadrid wrote:

OK, got it. But I really don't have a clue how to use it. What am I supposed to look for under what conditions? Anyone have a link to some instructions?

Cheers,

Bodley

rsinmadrid wrote:

OK, got it. But I really don't have a clue how to use it. What am I supposed to look for under what conditions? Anyone have a link to some instructions?

Cheers,

Be cautious - testing can make you crazy Will turn normal people into pixel-peepers causing excessive wasted time peeping and not shooting.

Learn the parameters your camera should perform within first.