Re: [APML]: M20 through DeepSky

["Bobby Middleton" <bobbym@webwide.net>]

----------
> From: Philip Perkins 
> 
> Howard Anderson and Steve Bell expressed an interest in seeing comparison

> photos of M20 with and without a Lumicon Deep Sky filter. I have posted a

> second image of M20 on my web page, taken with the DS filter. Please
click 
> on the M20 thumbnail ...
> 
> http://www.astrocruise.com
> 
> Conditions for the two exposures were so similar that I would consider
this
> a valid direct comparison 

My image of M20 taken through the deep sky filter looks very much like your
lower image in terms of the blue response; my exposure was 45 min on
hypered ppf400....
can we say we are seeing consistancy in the results obtained with the deep
sky filter?
Bobby Middleton
bobbym@webwide.net