From: Alan Friedman <alan@greatarrow.com>

Date: April 27, 2005 9:44:15 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] copernicus

On Apr 27, 2005, at 11:05 AM, Milton Aupperle wrote:

Hi Alan;

Even though we are both shooting with a 640x480 pixel cameras, the  

color Flea camera I'm using has larger 7.4 micron square sized pixels  

and is a 1/3" CCD, whereas the 21BF04 TIS cameras Alan uses has pixels 

5.6 micron square sized pixels (32% smaller) and is a 1/4" CCD.

The difference is I wind up with a 32% larger field of view for the  

same focal length - so it takes me fewer composite frames to cover the  

same area. 

Ah, yes - I had forgotten this. A larger field and more sensitive pixels - a very good choice for the aperture you are using.

Alan