On Sun, 06 Apr 2003 15:14:07 GMT, "Joseph Meehan" <sligojoeSPAM2@hotmail.com> wrote:

> You can make them as large as you like. I have seen them over 20 foot

>wide. Keep in mind that if you look at that 20 foot wide image from ten

>inches away, it is not going to look very good, but from 40 feet it looks

>great.

>

> It is not a matter of slide or negative. The quality of the exposure

>and "sharpness" of the film are the important factors. Some slide films are

>better for this than some negative films and the other way around, no clear

>winners here. Also note that other factors (tone, color, intensity etc.)

>will be different (not better or worse) with slides vs. prints.

I agree with this - and recently had a *cropped* 35mm image

(Velvia at 40, 80-200 f2.8 Nikkor around f5.6) blown up

to full billboard (UGH!) size, and it still looked OK

(at 75' or so...;-).