RE: [APML] [OT] full frame DSLR

["Richard Klappal" <klappal@xnet.com>]

I'm using a 2-3 year-old Sony DSCF707 which is not DSLR, but is doing me
very well for light pollution photos.  The built-in zoom is (in 35mm frame
equiv) about 38mm to 190mm.

For my light pollution exposures, I find ISO 400 @ f/2.8 @ 10 seconds works
well. That gives an unmanipulated image that is very close to what the
dark-adapted eye perceives.  You can check out some of my LP images under
http://home.xnet.com/~klappal/FoxValleyLightPollution.html.

Any of the current DSLRs will give you a couple more stops of film speed and
longer timed exposures and/or Bulb settings.  An observing companion
recently got the Canon D300 Rebel, but I've only been involved with him one
session, and haven't looked it his output.

-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Wei-Hao Wang
Sent: Friday, 04 June, 2004 18:08
To: astro-photo@seds.org
Subject: [APML] [OT] full frame DSLR


Hi,

A professor in our institute came to me and asked for advise on
DSLR.  He needs very wide-angle so he prefers full frame ones.
(I told him that EOS10D and Nikon D70 are nice but he doesn't
like their APS sizes.)

Among those full-frame DSLRs (EOS 1D Mark II, EOS 1Ds, Nikon D...?),
which one is best for long exposure?  He doesn't care much about
H-alpha sensitivity.  He will use this camera to evaluate the
light pollution in Hawaii.  (Yes, we do have light pollution.)

Any suggestion is appreciated.

Wei-Hao


______________________________________________________________________
Wei-Hao Wang  :)

Institute for Astronomy at University of Hawaii

Address:                       Phone: 808-956-9867
2680 Woodlawn Drive            Personal Website:
Honolulu, HI 96822             http://www.ifa.hawaii.edu/~wang
______________________________________________________________________



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