Had a bit of time to collect some data with the 150mm achromat.
Camera Canon 5DH. 150mm diameter f/4.5 SkyWatcher Achro.
HA 3x4min ISO500
O3 3x4min ISO500
HB 1x4min ISO500 cloud arrived!
Fudged a longer exposure by summing the HA and O3 and made hdr images with the medians. That accounts for the noise.
Recombined with ImagesPlus
HA red + HB red to Red
O3 green to Green
O3 blue + HB blue to Blue
Large image 1.5MB
http://avandonkbl.bigblog.com.au/dat...1010104600.jpg
Looks very promising. With longer and more exposures should be a real goer.
Combining this with colour images from the 100ED and doing the lot in HDR should be very good!
Bert