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Quote:
owland,
Could you explain further your comment:
......leave the AA out altogether as it softens focus
The AA filter element is basically a UV -IR blocking filter....I have the spectroscope transmission curves available...this should not affect focus..
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Hi Ken. Several enthusiasts have been removing AA filters, by which I mean the outer glass of the sensor assembly. Apparently, one effect of the AA filter is to reduce Moire an artifact of the standard Bayer matrix and in so doing produces a slightly softer image than possible without the filter in place. This is documented on various photographic sites. The properties of UV-IR are not in dispute, it's the by-product of Moire reduction that affects image sharpness - so sharpness, not focus, is what I mean.
I was skeptical too, but a bit of research turned up a few articles on the subject.
Alistair, I also have a couple of custom made cold fingers for a 1000D - ? One needs a bit of work the other is a bit short.