The problem with the data upload limit for attachments has been fixed. I have restored it to 30MegaBytes. A recent forum software upgrade was responsible for the changed limit. Please accept my apologies for missing this when upgrading the forum sofware, Mabula.
Amp glow in OSC with duo narrowband filter
Hi, APP staff
I currently use STC duo narrowband to produce narrowband images from QHY10. APP performs very well in most of RGB images. However, when I extracted and combined H-alpha and OIII in combine RGB tool, there was an ugly amp glow near the upper right hand in OIII channel which severely affected the final images. The adaptive pedestal/amp glow removal could not do anything to this amp glow. Although it can be fixed with photoshop in some degree, it would be better to be fixed from APP at first place.