Re: [APML] OT: Question for Canon 10D owners

["Mike Unsold" <mike@mlunsold.com>]

Canon's TC-80N3 remote hand controller can be used to automate groups of
exposures. If the camera is set to bulb mode then
a delay before the first image, interval between images, exposure length,
and number of expsoures can all be set using the TC-80N3. The 300D/Digital
Rebel can also be used with the TC-80N3 but the controller's plug will need
to be changed.

I have both the 10D and 300D and see very liitle difference between the two
for astro images. The IR cutoff filter can also be removed from the 300D to
increase h-alpha sensitivity but I have not removed it yet.

Mike

----- Original Message -----
From: "Stuart Heggie" <stuart.j.heggie@sympatico.ca>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Monday, December 08, 2003 6:21 AM
Subject: Re: [APML] OT: Question for Canon 10D owners


> Dave - that is really helpful! Thanks!
> The comparison, using back of envelope math, says the digital camera is 2x
> as sensitive as Supra400. Your comparison is the best I've seen giving
both
> media a fair shake. I guess the only two questions remaining (one you
> reminded me of with your picture) are:
> 1. How is the red response vs. E200?
> 2. Is there a convenient way to program it to take a series of exposures
> without having to go out and start each pic manually - a strength of the
D10
> I'm told?
>
> Do you know?
>
> Stuart
> ----- Original Message -----
> From: "Dave Dockery" <dave.dockery@zianet.com>
> To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
> Sent: Sunday, December 07, 2003 11:39 PM
> Subject: RE: [APML] OT: Question for Canon 10D owners
>
>
> > Hi Stuart,
> >
> > I just got a 300D and had one night to run a quick test before my wife
and
> > kids made me put it away for Christmas  (it's my big present this year.)
> I
> > set up the camera and my TV85 on a (roughly) polar aligned CG-5 and took
a
> > series of two minute shots of M45.  This was just intended to check the
> > noise and sensitivity to reflection nebula so forgive the tracking.  I
did
> > shoot several darks and used ImagesPlus for dark subtraction and image
> > stacking.  Also keep in mind that this was shot from my backyard in Las
> > Cruces with no LP filtering.  I compare the image to a recent Supra 400
> shot
> > taken under dark skies at one of the nearby state parks.  It's by no
means
> a
> > carefully controlled comparison but I did try to avoid doing much
> processing
> > other than to try and match the background rgb levels of the images.
> >
> > See: http://www.zianet.com/dave.dockery/m45comparison.jpg
> >
> > I'm very impressed with the Rebel and FWIW I think it's going to be a
> great
> > astro camera.
> > Dave
> >
> >
> >
> >
> > > -----Original Message-----
> > > From: astro-photo-bounces@seds.org
> > > [mailto:astro-photo-bounces@seds.org]On Behalf Of Stuart Heggie
> > > Sent: Sunday, December 07, 2003 6:13 AM
> > > To: Discussion of FilmAstrophotography
> > > Subject: [APML] OT: Question for Canon 10D owners
> > >
> > >
> > > Did the decision to buy the 10D factor in this new Digital Rebel that
is
> > > about 2/3rds the price? Is there something about the Rebel that would
> > > preclude using for astro? I am going to add a digital camera to my
> > > collection and since my older manual focus Nikkors won't talk to a
Nikon
> > > digital SLR I'm open to the best value by any brand. My current copy
of
> > > PHOTOGraphic magazine says the Digital Rebel is the best value
available
> > > today. It also highlights differences between the Rebel and the
> > > 10D none of
> > > which seem to me to be things I'd use so why pay for them?
> > >
> > > Sorry for the long question - thoughts?
> > > Stuart
> > >
> >
> >
> >
> > _______________________________________________
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>
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