Well, see my lens tests e.g. here
. With the monitor pattern, you can easily get a first impression on geometric distortions, color-fringing and corner-sharpness. So three tests in one. Just don't use it for light fall-off as explained here
If you want to use the "Enhanced Digital Camera Resolution Chart" like the one Gordon uses, looky here: http://www.sinepatterns.com/i_Stdrds.htm
or the chart that I print on A4 and plaster it all over a wall here http://images.digicamfotos.de/media/23/siemensstern.zip
(copyright D. Bethke).
Most important for all measurements (except for light fall-off) is absolut perpendicular alignment of the camera/lens-axis to the wall/test-subject plus a 120% focus!
When reading from resolution-charts, you need to make a judgement when the different "stripes" are blurring into one gray area (or in case you use the Siemens-star; one grey disk. This takes some judgement, as all those lines don't just abruptly disappear, but with time you get used to it.
Another advice: resolution should not be judges with lines that run exactly horizontal or exactly vertical, as the in-camera sharpening will inadvertantly do somthing to these patterns. the general advice is to let those lines run at a 7° angle either to the vertical or the horizontal. With a Siemens-star, you will not have this prob, as the lines run in every direction. Just don't measure the diameter of the grey disk at exactly the horizontal or vertical axis
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews
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