Re: [APML] OT: Nikon D2H Astrophotography Tests

["DEREK BAKER" <derekb@sympatico.ca>]

Jerry

I second Rob's congrats on an excellent review. Great detail and support
data (photos) in your usual easy-to-read style. It's nice to see another
highly experienced expert in the field wading into the realm of the DSLR !!!

BTW: Hey! It's nice to see the all of you unfortunate Nikon folks have
something to use if they choose the DSLR option. It was getting lonely out
here in "Canon-land" {snicker snicker :-) }LOL.

Regarding the resolution issue....I recall that Roger N Clark quantitatively
determined that the Canon  10D's chip is capable of resolution/noise levels
equivalent to Fuji Velvia 50 colour film. That's pretty damn good.....not
quite hypered tech-pan...but close. I would think that seeing would be a
limiting issue at that point. That tends to be my experience. Of course I do
not live in a prime observing area with the Florida quality seeing and
Arizona transparency, so some of you out there may find the camera the
limiting factor in resolution, but here in southern Ontario Canada...I DO!!
:-)

Perhaps we could ask Roger to post a link to his excellent resolution tests
for our perusal.

Anyway, Jerry, I hope the Nikon D2H can deliver excellent resolution/noise
performance for you. I will be interested in seeing what you get shooting
through the AP130 that you know so well...I have an AP130 as well, the EDFS
version. You can check out some of my earliest shots with the Canon 10D at
www.pbase.com\derek_baker  I used the web site on a trial basis to get some
of my shots shared, but I can't download there anymore. They're old shots,
I am NOT an astrophotography expert, and I have reprocessed some now that I
have an newer version of the excellent program "Images Plus", but the oldies
are there to check out anyway......for what it's worth....

cheers!

Derek Baker

----- Original Message -----
From: Robert Gendler <robgendler@worldnet.att.net>
To: Discussion of Film Astrophotography <astro-photo@seds.org>
Sent: Sunday, January 04, 2004 8:13 AM
Subject: Re: [APML] OT: Nikon D2H Astrophotography Tests


> Jerry,
> Nice review. That must have been alot of work.
> Because of the way these cameras acquire color ( not all the pixels
> are used at once) they will not have the same resolution as the monochrome
> astronomical CCD cameras. Also the blue halos and distortion of the stars
> are more likely due to the performance of the 400MM F2.8 lens. These
lenses
> are not apochromatic or even close. CCD's will bring out all these optical
> flaws.
> With film the optical flaws of these lenses are masked by the overall low
> resolution
> of the image.
>
> Rob Gendler
> Email: robgendler@att.net
> Web site: http://www.robgendlerastropics.com/
> ----- Original Message -----
> From: "Jerry Lodriguss" <jerry@astropix.com>
> To: <astro-photo@seds.org>
> Sent: Sunday, January 04, 2004 5:09 AM
> Subject: [APML] OT: Nikon D2H Astrophotography Tests
>
>
> >
> > I've just posted some preliminary results of some test exposures that I
> did
> > with the Nikon D2H digital camera for long-exposure deep-sky
> astrophotography.
> >
> > They are at:  http://www.astropix.com/HTML/TESTS/D2H_A.HTM
> >
> > The camera looks promising with fairly good red and blue color
sensitivity
> > and low noise, especially when the in-camera noise reduction is used.
> >
> > Jerry
> >
> > Photoshop for Astrophotographers - http://www.astropix.com/PFA/PFA.HTM
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Astro-Photo mailing list
> > Astro-Photo@seds.org
> > http://seds.org/mailman/listinfo/astro-photo
>
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo
>

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo