Hybrid-composite Mosaics: My thesis (of sorts)

[Tom Davis]

As most of you are aware I often image with two setups then combine the data to get a so called hybrid-composite image. This technique generally works quite well but it does have some downsides.

Here I present my thoughts on why I do what I do. The actual techniques are not described (you can email mail or PM me if you want technical details), but rather I present the idea and show image comparisons.

If this is of any interest to you then please let me know.

http://www.tvdavisastropics.com/astroimages-1_0000ed.htm

-Tom

[Mighty_oz]

Thanks for putting that up very informative, often thought of doing similar things :)

[gregbradley]

Very good writeup Tom. I am about to use 2 setups as well.

One thing that may be of interest to you would be the new generation of one shot colour chips Kodak has had out for a while now. They are KAI series chips and Kodak calls it True Sense. They are an LRGB matrix instead of Bayer RGGB matrix.

They have something like 43% QE on many chips and most are smaller pixels which would be a better match for your scopes. The 11002 one shot colour is 34 to 42% QE which is higher than most but typical QE for OSC is around 23% or less. So they are nearly twice as sensitive for low light like we use them for.

Greg.