best canon copy lens

[Jonathan Wienke]

One of the macro lenses would pretty much meet your criteria, like the 50mm/2.5.

[ddtuttle]

I just purchased an EOS 1Ds Mark II, and the 24-70mm L lens.  Needless to say I'm very happy.  However, I've noticed that the sensor is sharper than the lens.  There is a 2-3 pixel blurriness at 100% magnification (BTW: this is equiv to 56"x37" print).  I have experimented with numerous F stops, to find the optimal, but the sharpness issue persists.

I do a lot of 4x5 copy work of paintings etc., and I'm convinced this camera can replace my 4x5 for my needs.  However, I need a non-zoom lens that pushes the 1DS MkII sensor to the wall in sharpness.   It also must have good chromatic characterisitcs and a very flat focal field.  It doesn't need to be fast, or have wiz-bang electronic features.

Any suggestions?
DDT