RGB filter set for ST-8E

I scored a used ST-8E for $1000 here on Astromart. Now I need an RGB filter set for it. Astrodon, Custom Scientific, Astronomik and Orion from $$$$ to $.

I'm leaning to Astronomik as they are IR blocked and, based on price only (!), appear to be decent enough. But are they? Will I get halos around stars with them? Is the OIII passband messsed up so my color balance on emission nebula will be hard to correct?

Is the Orion set good enough to take excellent RGB pics with an ST-8E? They aren't IR blocked but that can be solved.

Lay it on me. What do you all think?

Hi Philip,
The halo around stars comes from reflections, not just off of filters, but even the glass window over the CCD Chip.
I read a very good article about S-big and reflections. Here is a link and it is a good thing to read.
http://www.astrodon.com/documentation/documentation.cfm?DocID=3
As you will see, most always a reflection will happen if there is a very bright star in the picture. Some amount is hard to eliminate.
The more important thing would be, parfocal, band pass, IR/UV and then anti-reflection coatings.
Here is another informative link for transmission of filters.
http://www.astrosurf.com/~buil/filters/curves.htm
I think the Astronomik would be fine as would the Astrodon or Custom Scientific. I use a cheap set of Meade CCD RGBL and they work pretty well.
Orion, I would not think so, they are not the same type of filter.
If you buy all the filter of the same brand, you stand a better chance of being parfocal, which is less work.
Buy what you can afford. You can spend a lot more than $1000 on filters. I have Baadar Narrow band filters and they seem to work pretty well. Not the best I am sure but serviceable.

Hey Philip (rumpledoll),

I use Astronomik LRGB and their Ha and OIII. They are all parfocal so you won't need to adjust focus from one to the other.

Brian

Hey Phillip did you get yourself a Color filter Wheel with you camera. One set of filters that I might consider would be the Baaders that Astro-Physics sells