|
If the artefact doesn't show up again, forget it, might be a one off.
I suggest Robert Vice's version of DARV; it is usually the first version on
the list when you google it. You don't need reticle eyepieces or anything
else, just your scope and your DSLR with Live View. I don't use my computer,
just a shutter release cable, and time the exposures with my watch. When doing the exposures you can save time by starting out on each axis with shorter ones than the recommended, because if your alignment is well out even a short [30 secs] exposure will show it. Make the exposures longer as
you get nearer to your goal to improve accuracy, as obviously if the alignment is almost good enough, the error will need longer to reveal itself.
There are a couple of people here on IIS who will make you a Bahtinov
mask with their 3D printers, definitely better than Live View.
raymo
|