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Re: [APML] Going to the Luminance side?



I disagree. Film's not a dead dog yet <g>.  Film still has a competitive niche and even a competitive advantage at the mid-focal length and widefield level. The shorter FL instruments necessary to get the larger views with the big CCD chips are just too small in aperture to match resolution with the best astrographs used with tech pan film and other excellent high resolution photographic techniques like mosaics and medium format photography. I will grant that CCDs will get more bang-for-the-inch in terms of aperture, but with good instruments film still competes even outdoes a st-10 hooked up to a Tak FSQ 106 or a Nikon 300mm f/2.8 lens. And all of those CCD widefield tools are pretty pricey. Of course the "best astrographs" ain't cheap either <g>. Compare my mid-focal length film shots with the best equivalent CCD images:
http://www.koyote.com/users/bobm/horsehead.htm
http://www.koyote.com/users/bobm/california.htm
http://www.koyote.com/users/bobm/rosette2.htm
http://www.koyote.com/users/bobm/m31.htm
 
Then you can talk about constellation photography:
http://www.koyote.com/users/bobm/sagittarius.htm
http://www.koyote.com/users/bobm/northern_milky_way.htm
Axel Mellinger or John Gleason has much better stuff than that. Has CCD even been here yet?
 
Then go look at the Schmidt camera images by Loke Tan, John Mirtle, Robert Reeves, Kent Kirkley, et al. And F/1.5 to beat that!
Everybody's been trying to bury film for about 2 years but we're still seeing some great work on film. Don't jump ship just yet; not for the widefield stuff anyway! 
Bobby Middleton
 
----- Original Message -----
Sent: Tuesday, April 02, 2002 5:33 PM
Subject: Re: [APML] Going to the Luminance side?

Monte
I agree with most of what you say except "Wide field colour
work is still going to be best done with film for some time yet".
I must disagree. You can capture very widefields with CCD by
using short FL instruments or mosaics and still get comparable or better
resolution than film images. I have many widefield CCD images on my web site
taken with a 300mm lens. These compare quite favorably with widefield
film shots taken with larger instruments in regards to FOV,
resolution and color. A few of them are at
Rob Gendler