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Andy Marks | profile | all galleries >> 2009 >> June >> Lens Align tree view | thumbnails | slideshow

Lens Align

RawWorkflow.com's LensAlign is a clever, well made tool for checking and
possibly correcting your camera/lens pairs. To "correct" a camera/lens
pair your camera must support "AF MicroAdjustment". The Nikon D90 (at present)
does not support AF Microadj for instance. Perhaps in a software upgrade??

That said, you can evaluate your camera/lens pair(s) AF and know
if AF is biased toward front or back focusing.

Anyway, my "L" lenses faired pretty well. My 50mm f/1.4 didn't do as well.
That said, I'm glad I can adjust it to make it work better w the camera.

Canon 50mm f/1.4 - Front focus, Corrected w a +14 adj
Canon 24-105mm f/4.0 - Front focus, Corrected w an +6 adj
Canon 16-35mm f/2.8 - Fine as is
Canon 100-400mm f/4.0 - Front focus, Corrected w a +2 adj

Note: Didn't have "sight gate" closed during 50mm sequence. My bad.
105mm dialed in 50mm f/1.4: Front Focus w/o adjustment 50mm f/1.4: Front Focus w +10 adj. 50mm f/1.4: Correct Focus w +14 adj.

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