re flat field. I wish. That is heavily cropped in the center region. The corners look like hot dogs
The FS-102 and 128 need a flattener or reducer/flattener. I have used the TOA 130 reducer flattener and that gives a nice flat field edge to edge.
I hear you re skys of melbourne. I am only 10 min from city and fight light pollution. I spend 5 times longer processing an image from Melbourne than from dark sky.
Using a OSC seems to make handling processing from light polluted area worse. Blue seems to suffer the most and its hard to get decent star color. There are a lot of nice blue stars in 47 Tuc but bringing them out using OSC is very difficult as you cant process a blue channel of data the same way you can using separate LRGB filters.
Still I enjoy the challenge of seeign what I can get from the burbs...
About to get a new cam with full Ha, O3 and SII filters which will allow me to do some narrow band imaging to cut through all this light pollution
Quote:
Originally Posted by Alchemy
Looks like all is working well, seems you have a nice flat field edge to edge; once the moon has gone you will no doubt give it a good workout, it's always a delight to have a new peice of equipment to play with.
Best of luck with imaging in Melbourne though, every time I go down there at night I'm astounded by how few stars you can visually see down there, I don't know how you go off the galactic plane where there's less to guide from.
Watch with interest the new scopes progress, you're obviously a dedicated TAK fan.
Clive
|