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Re: [OM] Film advice

Subject: Re: [OM] Film advice
From: "John A. Lind" <jlind@xxxxxxxxxxxx>
Date: Sat, 14 Sep 2002 01:24:47 -0500
At 21:07 9/13/02, Matt Crawley wrote:

Have any of you had problems with too much red in the skin tones using
Provia?

No, at least not assignable to the film itself. I have seen these symptoms occur using all "general purpose" chromes with:
  (a) underexposure which tends to increase reversal saturation
  (b) too close with a harsh flash at higher ratios of flash to ambient

I think this might ONLY be a problem with very fair skinned people but my 1
year old girl looks a little red & blotchy with Provia.

If I've interpreted your description accurately, they both relate to this in different ways. Very fair skin is more translucent and tends to have more of a pink cast to it. This is caused by higher than average skin translucence allowing blood in the capillaries near the skin's surface to show through. Increased saturation with underexposure of chrome films picks up on the pink cast and accentuates it. With higher power levels of electronic flash, some of the light travels into the skin, reflects off of the blood in the capillaries and travels back out to the camera lens. The higher the ratio of flash to ambient, and the closer the flash, the greater the sub-surface reflection.

Anyone use Astia?

Yes. It's also good, but IMO does not have quite as much apparent sharpness (acuity) as Provia 100F (RDP III).

I think it goes Velvia for mega color, Provia for all round and Astia for
portraits...

I would describe it as:
Velvia for mega color (presuming this means highly saturated), Provia 100F for general purpose and Astia for more restrained saturation and slightly less acuity than Provia. BTW, Astia *is* Sensia 100, a consumer film.

-- John


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