I agree with your suspicion.

My Minolta, in raw pixels gets about 8mb from a 35mm frame.  With the
4000dpi scanners, a raw pixel count of about 20mb is realized.

It does seem there is more than 6 megapixels of information in a 35mm film
frame.

It's the "standards" issue again...  and what size the final output will be.
For most people 6 mega-pixels may be good enough, but "good enough" and "as
good" may be two different things, depending on the user's intentions.

Tom C.


----- Original Message -----
From: "Kent Gittings" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, December 26, 2001 11:06 AM
Subject: RE: DPI vs. PPI


> I don't know either. If I thought that there was really only about 6 MP of
> real info in a 35mm frame I might make the switch to digital sooner than I
> expect to. But I'm not sure they are not fudging their opinions down so as
> to sell large amounts of their higher end digital cameras.
> Kent Gittings
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of aimcompute
> Sent: Wednesday, December 26, 2001 12:10 PM
> To: [EMAIL PROTECTED]
> Subject: Re: DPI vs. PPI
>
>
> That's interesting, but let me ask this.  I'll do it rhethorical fashion.
>
> When I scan a 35mm slide with my 2438ppi scanner, what part of the 20+
> megabyte file would I choose as being inconsequential to the image?
>
> And now with the 4000ppi scanners it seems there is even more data to be
> found in a 35mm frame.
>
> Tom C.
>
> Kent Kittings wrote:
>
> <snip>
>
> > By the way in the latest
> > product news from Fuji they say that generally (without specifying the
> film)
> > a 35mm snapshot has about 6 MP of info that can be mined out of it with
> even
> > the best scanners. This is when comparing it to their 6900 digicam that
> has
> > a 6 MP interpolation mode. I know at some point a higher and higher dpi
> film
> > scanner will get no more real data out of a negative/slide but just
> > interpolation of the areas between the grain. However I was under the
> > impression the amount of data on a 35mm frame was higher. So either they
> are
> > fudging so as to place themselves correctly in the digicam world or they
> are
> > correct and maybe downplaying the actual data content of their own film
to
> > move towards a digital world.
> > Kent Gittings
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