Canon EOS 1Ds MkII Preview

http://www.dpreview.com/articles/canoneos1dsmkii/

Obviously the excitement created by Nikon had to be diverted a little before
Photokina.

Deryck

Deryck Lant wrote:

http://www.dpreview.com/articles/canoneos1dsmkii/

Obviously the excitement created by Nikon had to be diverted a little before
Photokina.


At last, a DSLR to rival 35mm film for most applications - and I say
that having carefully studied all four of Canon's sample images.

From: TP

At last, a DSLR to rival 35mm film for most applications - and I say
that having carefully studied all four of Canon's sample images.

Rival it? I'd say you're being a bit conservative. Can you say "Blows film
away?"

(Annika1980) wrote:

From: TP

At last, a DSLR to rival 35mm film for most applications - and I say
that having carefully studied all four of Canon's sample images.

Rival it? I'd say you're being a bit conservative. Can you say "Blows film
away?"


No,it doesn't come anywhere near blowing away a 6000 dpi drum scan of
a Fuji Provia 100F slide or NPS negative. Nowhere remotely near.

But I do accept that most applications don't need the quality of a
6000 dpi drum scan of a Fuji Provia 100F slide or NPS negative, and
for those applications, the EOS 1Ds MkII does rival film.

TP writes:

(Annika1980) wrote:

From: TP

At last, a DSLR to rival 35mm film for most applications - and I say
that having carefully studied all four of Canon's sample images.

Rival it? I'd say you're being a bit conservative. Can you say "Blows film
away?"


No,it doesn't come anywhere near blowing away a 6000 dpi drum scan of
a Fuji Provia 100F slide or NPS negative. Nowhere remotely near.

Could you show us such a scan?

But I do accept that most applications don't need the quality of a
6000 dpi drum scan of a Fuji Provia 100F slide or NPS negative, and
for those applications, the EOS 1Ds MkII does rival film.

Yes, I'd really like to see the detail past 100 cycles per millimeter
on that film. I really doubt that there is much. Looking at the Provia
100F data sheet, the MTF curve doesn't even extend to 100. It goes to
about 59 cycles per millimeter, and it's about 20% at that point,
heading down. Even with a perfect lens and camera, there can't be a
lot at that spatial frequency. Especially in a natural scene.

--
-Stephen H. Westin
Any information or opinions in this message are mine: they do not
represent the position of Cornell University or any of its sponsors.

From: (Stephen H. Westin)

No,it doesn't come anywhere near blowing away a 6000 dpi drum scan of
a Fuji Provia 100F slide or NPS negative. Nowhere remotely near.

Could you show us such a scan?

Yes, I'd really like to see the detail past 100 cycles per millimeter
on that film. I really doubt that there is much. Looking at the Provia
100F data sheet, the MTF curve doesn't even extend to 100. It goes to
about 59 cycles per millimeter, and it's about 20% at that point,
heading down. Even with a perfect lens and camera, there can't be a
lot at that spatial frequency. Especially in a natural scene.

That's what I was going to say, in not so many words.

("Bull****!")

"Stephen H. Westin" wrote in
message ...
TP writes:
SNIP
But I do accept that most applications don't need the quality of a
6000 dpi drum scan of a Fuji Provia 100F slide or NPS negative,
and
for those applications, the EOS 1Ds MkII does rival film.

Yes, I'd really like to see the detail past 100 cycles per
millimeter
on that film. I really doubt that there is much. Looking at the
Provia
100F data sheet, the MTF curve doesn't even extend to 100. It goes
to
about 59 cycles per millimeter, and it's about 20% at that point,
heading down. Even with a perfect lens and camera, there can't be a
lot at that spatial frequency. Especially in a natural scene.

Impossible indeed, the camera lens+film and scanner together will max
out at something like 85 cy/mm. The Nyquist of the 1Ds MkII however
limits resolution to 61 cy/mm, but at a higher modulation. Mind you,
that's good enough for a 'perfect' visual acuity limited 8x10in
enlargement with plenty of potential to go further (16x20in is hardly
a compromise).

Bart

From: (Stephen H. Westin)

No,it doesn't come anywhere near blowing away a 6000 dpi drum scan of
a Fuji Provia 100F slide or NPS negative. Nowhere remotely near.

Could you show us such a scan?

Yes, I'd really like to see the detail past 100 cycles per millimeter
on that film. I really doubt that there is much. Looking at the Provia
100F data sheet, the MTF curve doesn't even extend to 100. It goes to
about 59 cycles per millimeter, and it's about 20% at that point,
heading down. Even with a perfect lens and camera, there can't be a
lot at that spatial frequency. Especially in a natural scene.

That's what I was going to say, in not so many words.

("Bull****!")

"Stephen H. Westin" wrote in
message ...
TP writes:
SNIP
But I do accept that most applications don't need the quality of a
6000 dpi drum scan of a Fuji Provia 100F slide or NPS negative,
and
for those applications, the EOS 1Ds MkII does rival film.

Yes, I'd really like to see the detail past 100 cycles per
millimeter
on that film. I really doubt that there is much. Looking at the
Provia
100F data sheet, the MTF curve doesn't even extend to 100. It goes
to
about 59 cycles per millimeter, and it's about 20% at that point,
heading down. Even with a perfect lens and camera, there can't be a
lot at that spatial frequency. Especially in a natural scene.

Impossible indeed, the camera lens+film and scanner together will max
out at something like 85 cy/mm. The Nyquist of the 1Ds MkII however
limits resolution to 61 cy/mm, but at a higher modulation. Mind you,
that's good enough for a 'perfect' visual acuity limited 8x10in
enlargement with plenty of potential to go further (16x20in is hardly
a compromise).

Bart

In article ,
says...
No,it doesn't come anywhere near blowing away a 6000 dpi drum scan of
a Fuji Provia 100F slide or NPS negative. Nowhere remotely near.

In capturing detail, I would say it does. The effective resolution of
film is nowhere near the scanning resolution. In any case, the utter
lack of noise or grain in the 1Ds Mk II images tilt the scale favorably
to digital.
--
http://www.pbase.com/bcbaird/