Re: Question about EIR

[Bertha Adamson <badamson@xxxxxxxxxxxxx>]

Bert P. Krages wrote:
> 
> I have had two problems with EIR.  The first is with sharpness.  I can
> normally get excellent prints up to 11 x 14 from daylight type transparency
> films (e.g., Provia F) but find that EIR gets marginal even at 8 x10.
> Experimentation suggests that my equipment gets the best sharpness at f/16
> but the problem remains.  Is there anything that can be done to improve
> sharpness with EIR?
> 

No one else has mentioned this, so it made me wonder - is the focusing
difference of IR versus visible light not an issue with color IR? Do you not
have to adjust focus on some lenses as you would with B&W IR?

I've not had a problem with sharpness, but I generally shoot at f/11 or f/16,
and usually with a wide angle lens, which would compensate for differences in
depth of field. 

Bertha
-- 
Email:  badamson@xxxxxxxxxxxxx
http://www.netcom.com/~badamson/

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