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

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

The IR filter in the 300D is just laying on top of the chip but in the 10D
it is glued to the chip. ???
It will be a liitle while before I try to remove the IR filter from my 300D.

Mike

----- Original Message -----
From: <apml@beskeen.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Monday, December 08, 2003 8:25 AM
Subject: Re: [APML] OT: Question for Canon 10D owners


> Hi Mike,
>
> > 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.
>
> Is there a design difference between the 10d and 300d that makes this
> removal easier/possible on the 300d? Are there any websites detailing this
> hack? Any chance that the hack can be reversable for terrestrial use
> (wishful thinking probably :-/).
>
> I have seen the 10d response curves posted, doesn't look good for emmision
> nebula:
> http://www.astrosurf.com/buil/us/digit/spectra.htm
>
> Do you know of any objective comparision with and without the filter in
> place? I'm waiting for my 10d to arrive, and my wife would probably take a
> dim view of me hacking it immediately - need evidence! :)
>
> Cheers, Paul.
>
>
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>


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