Re: f?

[George L Smyth <glsmyth@xxxxxxxxx>]

--- Daniel Flather <pincher@xxxxxxxxxxxxxxx> wrote:
> Hello,
> 
>     This might be a basic question, but here it goes.
> 
>     I know that infrared light is prone to severe diffraction so I try
> to avoid f stops of 16 & 22.  My question is what f stop will help
> correct the diffraction problem? f/8 ?

I would say that the best thing to do would be to experiment.  Your question is
open-ended because much would have to do with the focal length.  FWIW, most of
my shots are at F11-16.  I've never had a problem with diffraction, and I would
be surprised if this was shown with infrared film.  Bottom line is to
experiment.

Cheers -

george

=====
Handmade Photographic Images
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