I more thing I forget to mention (important)....
Again, not sure which camera you purchased.
My camera is an SBIG ST-8300-M, or, in more important terms, a CCD type.
Did you purchase a CMOS type camera ??
If so, the exposure times will be MUCH LESS... to the order of maybe 50%
Cell (602) 908-9092
On 10/3/18, 5:07 PM, "David Douglass" <az-observing-bounce@xxxxxxxxxxxxx on
behalf of dmdouglass@xxxxxxxxxxxxxxx> wrote:
You say that you "understand" all that is being told... but "how to
actually do all..."...
So. Some basic guidance.
I am going to "assume" (gets me every time)... that you are Very New to
Do you understand about taking "darks, flats, and bias" frames ?? Not a
problem, if not. But it will have to be done before you can "process" the
A nice thing about that is that you can "pre-do" these, or, in most cases
(not all), you can do them after that fact. Flats are the tricky part there.
You mentioned earlier which camera you purchased, but I can't seem to find
it. Which one.
And you mentioned LRGB. So I am assuming you do NOT have a OSC (One Shot
Color) model. Do you have a filter wheel, and filters ??
As a general rule, I use 5 min exposures for DSO objects, and 1-3 min for
OC and Globs. The brighter they are, the less time is needed.
Nebulae is another story. Again 5-min is a good "rule of thumb".
But then.... a 5-min exposure can be a tricky thing. Do you have a guider,
and know how to use it? If not (to either).... then you will probably be
limited to doing 30-45 sec exposures (or you will have "trailing" stars...).
The best way to learn here is to practice. Consider your next several
"outtings" as just that. Learning experiences, and experiment.
Then try and get together with an experienced imager for guidance.
Yup.... lots going on here. And we have NOT even mentioned processing......
Cell (602) 908-9092
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