Re: infrared question

[Jim King <jimk@xxxxxxx>]

TAMMY L. SULLIVAN wrote:


Tammy,
I would guess that your negatives are somewhat overexposed. I set my
camera EI to 400 when I'm using a #25A filter and I still get some over
exposed negs. The unsharpness seems to be from 2 sources, the grain of
the film and the lack of anti-halation layer which causes bright areas
(dark on neg) to 'bloom' or spread out from where they belong.

Best of luck.

Jim.

> 
> I want to know if it is possible to obtain sharp photographs from infrared.
> I've only shot 3 rolls of Kodak HIE and when I look at the contact, they all
> look a little fuzzy.  I use a large aperture, wide lens, only the Red #25
> filter (No UV filter).  Sometimes if I pick a print from the contact and have a
> 4x5 made, it appears sharper than on the contact - sometimes not.  Is this
> whole thing a guessing game ?
> 
> I know sharpness is dependent on my focusing.
> 
> Also, I was told that in camera metering is useless when using infrared.  I set
> my camera meter to 50 with the #25A filter.  If my in-camera meter says 1/15 at
> f/11, I just ignore it and shoot away.  Could it be that I am getting fuzzy
> photographs due to the slow shutter speed?  But, that doesn't make sense either
> because the meter is reading regular light, not infrared.  I'm confused.
> 
> Tammy

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Topic No. 6