assodicuori 2:11 pm
Good day everyone, I’m Sauro Gaudenzi, I’m a member and AAVSO member, and I’d like to start photographing variable stars. I own a Skywatcher star Adventurer 2i wifi astrotracker, an Evostar 72/420 apochromatic telescope, a zwo asi 224 mc and two Canon eos 1100d, one modified full spectrum and one unmodified and several lenses, I would like to use the canon, I have no photometric filters, can I use the canon as they are, that is, without photometric filters?
Sauro,
Definitely! I suggest you report the V magnitudes only as “TG”.
Maker sure your data is not saturated, and do standard BDF processing. The AAVSO DSLR manual is a good guide!
Peter
BPEC
Hello,
As peter said, you can report the green chanel as TG.
You can also separate blue and red chanels and report them as TB and TR.
This will give you some interesting results on eclipsing binaries, for example.
Chris
pbealo and chrismlt, thank you very much for the explanation, I’m reading the AAVSO DSRL manual, should I make these separations at each photo? In the sense that if I take 60 shots I should make 60 separations?
Of course, it’s not mandatory to extract RGB colours simultaneously (you can stick to TG only, if you wish), but it can greatly improve the value of your observations.
You can do this in a few dozen of seconds using ASTAP, for example.
And, yes, you have to do it for each colour, and for each image you have in a time serie.
Dont be affraid : it’s easy and fully automated 
Chris
Thank you very much Chrismlt, you gave me a very useful piece of information, I can’t wait to start, weather permitting, thank you very much