Barlow for asi462 and bintel 10" dob

[Greggles]

Hey all,

Finally took the plunge and ordered a planetary cam the zwo asi462. Along with it I ordered a baader uv cut filter, zwo ir pass filter and a 5x gso barlow.

Although I think I may have made a mistake with the Barlow and just want some advice before it arrives.

I have a 10 inch f5 bintel/gso dobsonian and the asi462 has a pixel size of 2.9 microns. So with what I've read I should really be looking at a 3x barlow to take me to f15 (5x2.9) is that correct? Otherwise the 5x will be f25.

Would the 5x be useful at all or should I sell it as soon as it arrives?

Kind regards

Greg.

[Tulloch]

Unfortunately yes, the 5x Barlow will probably be too much for that camera and the 3x would be better for imaging. Did you also purchase an IR-cut filter (or did you already have one)? Without the IR cut all your images are going to look too red.

Andrew

[Greggles]

Thanks for your response, I thought that was the case. Thanks for confirming.

Guess I'll put the Barlow for sale in the classifieds.

Yes got the IR filter. In my first post I accidently called it a UV filter.

[Tulloch]

No worries, best to start with the right equipment.

It's probably a UV/IR cut filter (also called an "L" filter in places).

If you haven't imaged the planets before, then these series of tutorial videos will help.
http://planetaryimagingtutorials.com/

Andrew

[Greggles]

Awesome thank you.

Yeah I've done a little bit with a modified xbox cam and a dslr, Nikon so no 1:1 crop unfortunately. Never been that happy with the results.

[Tulloch]

Well, you will see a huge improvement - once you work out how to run FireCapture :) I have put a few tips in another thread here.
http://www.iceinspace.com.au/forum/showthread.php?p=1487563#post148756 3

Andrew

[Greggles]

Legend! Thanks so much.