Threshold - recommended setting is usually between
0 and 4. If you have used a low iso setting on the
camera you can get usually get away with using a setting of 0 - which
gives maximum perceived detail
as grain should be minimal.
CANON EOS 1D MK II settings.
This is the camera that I use, and as it has a strong anti-alias filter
the images that it produces straight from
the camera tend to look very soft. Some reviews of this camera complain
that the images are not sharp
with this camera - but that is not true, they sharpen up beautifully
An initial setting to try which applies a moderate amount of sharpening
You can then tweak from here if necessary.
ADVANCED USM TECHNIQUES
There are refinements of the unsharp mask technique, such as selective
sharpening using selections,
sharpening selected channels, progressive sharpening, sharpening with
layer masks etc. For more tutorials
on these subjects please click here:
Advanced unsharp mask techniques