Re: [APML] OT: M42 with the Canon 10D

["Bert Katzung" <katzung1@comcast.net>]

Hi Chris:
According to dpreview and other camera sites, the chips in the two cameras
are identical but the software/firmware is different (not all the options
available in the 10D are present in the 300D). The Hutech demo showing
results with the filter removed from the 300D chip and the accompanying
comments suggest that the layers *over* the chip may be different.
Bert

Bert Katzung
katzung1@comcast.net
www.astronomy-images.com

----- Original Message ----- 
From: "Chris Cook" <ccjd@ix.netcom.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Saturday, December 20, 2003 12:39 PM
Subject: Re: [APML] OT: M42 with the Canon 10D


> Are the chips in the 10D and 300D the same?
>
> Chris
>
> ----------------------------------
> Chris Cook
> Astronomical & Nightscape Photography
> www.abmedia.com/astro
>
> -----Original Message-----
> From: Steve <sc02492@yahoo.com>
> To: Discussion of Film Astrophotography <astro-photo@seds.org>
> Date: Saturday, December 20, 2003 12:12 PM
> Subject: Re: [APML] OT: M42 with the Canon 10D
>
>
> >Thanks everyone!  Chris, I have an optional cord that
> >converts the 10D to AC power, which is fine since I
> >use it near the house.  In the field, I would probably
> >use the same arrangement, but obtain AC from the car
> >battery using a DC to AC converter like the ones sold
> >at Radio Shack for instance (I haven't tried this, but
> >I know that others have).  Others have used the
> >battery pack for short sessions, but I wouldn't trust
> >it to go all night, especially in the cold.
> >
> >Steve, the 10D is unmodified.  The IR cut filter
> >supposedly cannot be removed in the 10D since it's
> >glued into place (that's what I've heard).  However,
> >there is interest in modifying the 300D by removing
> >the filter, and Hutech is planning to sell modified
> >units in January.  The way that I compensate for the
> >relatively low Ha sensitivity of the 10D is to combine
> >many shots for a long total exposure time.
> >
> >Steve Cannistra
> >
> >
> >--- Chris Cook <ccjd@ix.netcom.com> wrote:
> >> Steve -
> >>
> >> This is very nice!
> >> I have some questions about powering the 10D for
> >> long exposures.  What
> >> batteries are you using and how long does the camera
> >> operate with these
> >> batteries.  Can you shoot all night long without
> >> changing them?  Does the
> >> cold weather have any effect on battery performance?
> >>
> >> Chris
> >>
> >> ----------------------------------
> >> Chris Cook
> >> Astronomical & Nightscape Photography
> >> www.abmedia.com/astro
> >>
> >> -----Original Message-----
> >> From: Steve <sc02492@yahoo.com>
> >> To: Discussion of Film Astrophotography
> >> <astro-photo@seds.org>
> >> Date: Saturday, December 20, 2003 6:17 AM
> >> Subject: [APML] OT: M42 with the Canon 10D
> >>
> >>
> >> >Hi everyone,
> >> >
> >> >I know this is OT, but there's been interest in
> >> >"film-like" digital camera formats so I thought
> >> that I
> >> >would share this.  This was taken with the Canon
> >> 10D
> >> >and Tak Sky90.  I added 12 additional frames (8'
> >> each)
> >> >to my previous M42 in order to coax out more
> >> >peripheral nebulosity:
> >> >
> >> >http://www.starrywonders.com/m42new.html
> >> >
> >> >Details are at the bottom of the webpage- check out
> >> >the additional links for a larger image.  I like
> >> the
> >> >vertical composition better than the horizontal for
> >> >this shot- it gives a more "dynamic" appearance.
> >> >
> >> >Comments welcomed!
> >> >
> >> >Steve Cannistra
> >> >
> >> >__________________________________
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> >>
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> >
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