I couldn't reach focus with my main imaging scope 8" F/4, so i tested it on my 80mm F/11 guidescope. Not a great scope, cheapo meade refractor but was abit desperate last night. Imaging at F/11
Bit of moon glow got in the way in the end. Never had i imaged at this scale.
Canon 350D unmodded . No noise reduction. Baader 2" UHC-S Filter used. The UHC-S Filter makes a great difference even on unmodded DSLR. Darkens background dramatically and enchanced the neb glow.
Consist of 9 x 4minutes exposure at ISO 800 stacked in registax. processed in ps cs2.
I also took some flats (using scotts laptop screen method
) and darks both in .jpg but couldnt work out how to subtract it in IRIS.
anyway, comments welcome.