I have owned and used the Canon EOS-1D (2001) for over 10 years.
Over the years, I've made several comparisons, I present them to you here.
It might be of interest to some photographers
First Canon Digital Pro
4,060,000 pixel sensor (2464x1648)
Storage: CompactFlash
Price: $7,300 US
Canon EOS-1D (2001) by Marc Aubry, sur Flickr
A superb machine for the pros.
With a CCD sensor (28.7 x 19.1 mm) APS-H for a factor of x 1.3
A 50mm behaves like a 65mm in 24x36
The EOS-1D is the only Canon SLR with a CCD sensor
Kodak DCS 760 (2001) / Canon EOS-1D (2001)
www.flickr.com/photos/maoby/albums/72157719978445767/
Two APS-H CCDs from 2001
Canon EOS-1D (2001) / Canon EOS-1Ds (2002)
www.flickr.com/photos/maoby/albums/72157696525970964
EOS (2001-2002)
Canon EOS-1D (2001) / Canon EOS-1D Mark II N (2005)
www.flickr.com/photos/maoby/albums/72157683205368541
Canon Pro
Canon EOS-1D (2001) / Nikon D1x (2001)
www.flickr.com/photos/maoby/albums/72157669081121142
2001
Canon EOS-1D (2001) / Nikon D2H (2003)
www.flickr.com/photos/maoby/albums/72157668685417940
4 MP
Canon EOS D30 (2000) / Canon EOS-1D (2001)
www.flickr.com/photos/maoby/albums/72157667731061793
Canon
Nikon D1 (1999-2000) / Canon EOS-1D (2001)
www.flickr.com/photos/maoby/albums/72157719456559624
First professional camera
Canon EOS-1D ( 2001) / Sigma sd Quattro H (2016-17)
www.flickr.com/photos/maoby/albums/72157711047793818
CCD / Foveon ( APS-H)
Canon EOS-1D (2001) / Pentax 645D (2010)
www.flickr.com/photos/maoby/albums/72177720308541118/
4/40 CCD sensor