RE: [APML] OT: new Canon 20Da for astrophotography

[astropix@att.net (Geoff Powers)]

 Hello...

 

     Doesn't the 20Da also have an enhanced low-light focus feature, to enable accurate focussing directly through the camera's LCD monitor, as opposed to needing a laptop and software?

 

--
Geoff

http://spacelysprokets.com
--
http://segertribute.com

> -------------- Original message from "Lane, Jason R" <jason.lane@navy.mil>: -------------- 
>
>
> > They are the same thing...in both cases the filter is removed to take advantage 
> > of the fact that the detector's spectral response goes out into the near-IR. 
> > What's so special about the 20Da is that the manufacturer itself is doing it. 
> > And unlike any other photography corporation out there (or so it seems 
> > sometimes), Canon is acknowledging that there is a large enough demand for astro 
> > or IR photography to market a top-of-the-line product specifically aimed at 
> > them..albeit only in Japan. 
> > 
> > -Jason 
> > 
> > 
> > 
> > -----Original Message----- 
> > From: astro-photo-bounces@seds.org 
> > [mailto:astro-photo-bounces@seds.org]On Behalf Of Wei-Hao Wang 
> > Sent: Monday, February 14, 200
>  5 1:47 PM 
> > To: Discussion of Film Astrophotography 
> > Subject: Re: [APML] OT: new Canon 20Da for astrophotography 
> > 
> > 
> > Hi, 
> > 
> > Is 20Da that different from 20D? The H-a sensitivity increase is only 
> > 2.5x, at most as good as the Hutech modified one. 20Da won't be 
> > available in camera shops. One has to order 20Da from Canon Japan 
> > (not USA yet) and wait for 3 months to get it. I just don't see why we 
> > need 20Da instead of modified 20D, unless 20Da is much cheaper. 
> > 
> > Did I miss something? 
> > 
> > Wei-Hao 
> > 
> > -- 
> > ________________________________________________________________ 
> > Wei-Hao Wang :) 
> > 
> > Institute for Astronomy at University of Hawaii 
> > 
> > Address: 
> > 2680 Woodlawn Drive Personal Website: 
> > Honolulu, HI 96822 http://www.ifa.hawaii.edu/~wang 
> > ______________________________________________
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