This is first light for this magnificent telescope.
I thought I would do a classic - The Horsehead Nebula.
Longest exposure time ever for me. A total of 15 hours and 20 minutes.
TEC180mm fluorite triplet with TEC field flattener at F7, FLI Microline 8300, Astronomik RGB filters, Baader clear filter (no UV or IR coating for maximum transmission), Astrodon 5nm Ha filter.
Tak NJP mount, taken at my dark site over 2 trips.
HaLLRGB 450 120 120 120 110 120 for a total of 15 hours and 20 minutes (same luminance used twice in the image).
The Ha on this object is very dim but the clear filter really worked well so a 10 minute subexposure was quite bright and detailed.
NJP mount handles this scope (probably only just) which weighs about the same as my AP140 (16.5kgs).
My favorite is the crop:
Horsehead crop
http://upload.pbase.com/gregbradley/...08303578/large
usual size:
http://www.pbase.com/gregbradley/image/108338629
Large for the explorers:
http://www.pbase.com/image/108339034
I am stoked with the performance of this scope.
Here is a link to a photo of the setup:
http://www.pbase.com/gregbradley/image/108063178
Greg.