proj-imim:
Re: Some questions
Thierry Dehesdin 2001-May-02 09:44:09
----- Message d'origine -----
De : Greg Stumph <#removed#>
À : Daniel Maurer <#removed#>; <#removed#>
Envoyé : mardi 1 mai 2001 21:39
Objet : RE: Some questions
> So far, I've mainly been using consumer grade Kodak Gold 200 (or 400)
film,
> and I'm wondering if I'd get more consistent color and exposure between
> images with higher grade, slower film. I plan on shooting some Fuji Velvia
> and Provia slides soon, so I guess I'll find out if that makes a
difference.
> Do any of the more experienced photographers on the list have any thoughts
> on this? Also, would aperture setting have any bearing on this? Pardon my
> general ignorance, since I'm more of a hobbyist, not a professional
> photographer...
I'm not sure Velvia or provia are a goof idea if you take your photographs
only for Pano.
1) You will loose probably lot of details with a Nikon LS-1000 scan into the
dark areas of your slides.
2) Exposition is critical with slides. That's mean that you have to choose
the exposition for the highlights or for the lowlights. If you don't, you
will have highlights with no informations and lowlights too dark for your
scan.
3) Light color temperature is critical with slides. Specially, if you mix
day light and artificial light. It's more difficult to make a scan with a
pleasant color mix from slides than from negatives.
4) Velvia and provia are wonderful films for two reasons: high contrast and
definition. High contrast is a trouble with pan, and higher definition
does'nt change probably a lot of things if you are working with a Sygma 8
mm. I never test this lens, but I'm suspicious about his ability to take
advantage of the higher resolution of velvia or provia.
If you are sure you scanned with the same settings (and expose with the same
exposure), the difference between colours come probably from indesirable
light reflexions on the lens. If it's true, using slides films don't change
anything to your trouble. (You can make a test using at the same time and in
the same conditions negatives and slides). The only solution would be to use
a wide angle with a lens hood.
Thierry Dehesdin
Photographe
#removed#
http://www.dehesdin.com