[avandonk]

Thanks all others for any comments.

Mike that is a picture of me at 24 years of age when I worked at Kodak in 1973 when I was young and foolish.

I have deteriorated a bit since then. Gotten greyer and a bit grumpier or is that old and still foolish.

When you read in someone's Obituary that they did not suffer fools. It really means they were a pain in the A to all others.

A bit more detail about the imaging protocol. I use CCD flushing for all exposures and the slowest download speed. This really helps to keep the noise down. All darks are also done exactly the same way. I use one hundred Bias frames and at least sixty Darks.

At least thirty flats for the flat correction with correction for darks and bias. Another good thing about Astrodon Filters is that I use a flat taken with the NII filter to do the flat correction for all the other filters. Even with my F3 optic the narrow band filters show exactly the same relative recorded profile as the RGB and L.

I took meticulous care when installing the filters into the CFW to not introduce any dust. Even now I only have a few dust motes on the rear surface of the corrector lenses in the rear of the RH200. None on the filters.

With a lot of trial and error I have found the best conditions for integration see below.

When I have more than twenty subs I use 2.0 for Sigma Low.

Bert