I got the STC Duo from Cyclops a few weeks ago. Using it on an asi071 OSC.
http://www.iceinspace.com.au/forum/s...d.php?t=173501
http://www.iceinspace.com.au/forum/s...d.php?t=173374
Processed as an OSC image. Need long subs as the two bands are narrow (10nm). Need 10min subs with the filter -compared to 1.5min with just a uv/ir filter. I'm still capturing lights for these images.