Filters - OIII or UHC

[Viv]

hello all,

Filters are something I just haven't looked at yet (apart from the Astronomik clip one I have in the camera).

Having just watched Sky at Night, they were saying about the OIII filter for viewing - I had no idea they could assist with viewing.

So - after looking on FLO, there seem to be 2 types OIII & UHC.

Question is - could I use either with the ED80 & 200P, I am reading that the OIII is more suited to the 8" or bigger, but would it still be useable with the ED80 ??? Or would I be best of with a UHC ???

Thank you for any advice ...............

[NGC 1502]

I have both OIII & UHC. With your scopes, I would get the UHC first, it's more

useful on a greater number of objects I find.

HTH, Ed.

[Viv]

Thank you Ed - that does help.

Is there any make you would recommend ??

[Moonshane]

I use the Castell ones from 365 Astronomy. you can get a 2" Oiii or UHC for less than £50 delivered.

they are very good in use and whilst I am sure they are not the quality of Astronomik (but in honesty I could not see a difference when I compared them) they are excellent VFM and that way you might afford both which is the best way in my view.

[Mark at Beaufort]

Have a read of this it will give a better idea. Personally with the scopes that you have I would buy a UHC filter.

http://www.prairieastronomyclub.org/filtercomparisons.htm

Mark

[Viv]

Shane / Mark - thank you much both, that's brilliant !