Re: [photo-3d] Re: Infra-Red Question

[wwalsh <3dshooter@xxxxxxx>]

Chris Schneberger wrote:

> > My question is knowing that infra-red film does not focus on the same
> > plane as regular slide film and having no way to refocus the lenses
> > will the image be in focusing, even taking into account the extreme
> > depth of field of these lenses.
>
> If your lenses truly have the depth of field they claim, and I imagine they do
> at 12mm, then you have nothing to worry about.  IR has a fairly negligible
> focal shift and you would only have to adjust for it when using a small depth
> of field and in close up situations.  I used to shoot IR all the time with a
> 24mm lens set at f11 and never bothered with the focus correction.
>
> > Not sure if the depth of field even factor into this question.
>
> It's your saving grace.
>
> Chris Schneberger

Thanks for everyone help.

Bill