Re: [APML] Andromeda Up Close and Personal

[Chris1011@aol.com]

In a message dated 10/1/2002 6:05:35 PM Central Daylight Time, robgendler@worldnet.att.net writes:


> Yes I saw your very impressive image when you posted it.
> Your image is very well processed with great contrast but
> I think I may have the edge in resolution. The web image is 
> reduced in resolution by about 75%. 


Yes, you do have higher resolution for sure. The two images we posted are both half size in the large version. The full size versions do show a bit more, but end up being 6 mbytes. Each instrument has its strengths and weaknesses. The Mak-Newt is extremely fast in recording dim nebulosity. It maxes out at approx. 2.5 to 3 arc sec FWHM. My 10" at F14 can sometimes record ~ 1 arc sec, but is painfully slow. I'm working on two new instruments, one 10" F9 Mak-Cass and a 12" F9.5 Mak-Cass. Hopefully they will produce high resolution images with decent speed.  Both instruments will be optimized for CCD / 35mm with small central obstructions around 30%. 

Roland Christen