i just switched out my slowish 1100mm reflector for a 500mm fast refractor... at 1100mm, PS2 was solving everything with no issues with all default settings. however i've had several solve failures with this new focal length.
does anyone know what settings are relevant in PS2 that might improve things in a busy starfield with lots of small stars? i have increased the min star size a little bit but i have not been able to test it yet.
any benefit in switching catalogs? i think UCAC is selected, but i also have APM installed.
thanks, rob