catman161 Posted January 12, 2012 Share Posted January 12, 2012 I figured it was not eyepieces but eyepiece related. What if any filters would I need Togo with my SW 200p for looking at things like M42, dumbell nebula, ring nebula, pleiades etc? I observe from my back yard in the city and light pollution is pretty bad all round. I was looking at a filter in FLO called the OIII by Skywatcher, would that be a valuable addition to my setup? Felix Link to comment Share on other sites More sharing options...
Doc Posted January 12, 2012 Share Posted January 12, 2012 I have the O111 filter and it enables you to see objects that are very hard to see without one. It makes a lot of elusive planetaries visible and is best on the Veil nebula. Best experience I've ever had was my 16" dob, 28mm UWAN and my O111 filter on the Veil nebula. Other filters are UHC, Hbeta, to name a few. I have a great website on my laptop explaining what filters to use with what object, I'll post when I get home. Link to comment Share on other sites More sharing options...
Guest Kheldar Posted January 12, 2012 Share Posted January 12, 2012 I'd tempted to say none However an OIII has limited use, I'd leave that one for now. You can get a UHC filter for increased contrast on a fair few DSOs - that will get more use and help with some of the LP. Alternatively, you can just get a Skywatcher LP filter : if it's compatible with your LP it will help a lot. Link to comment Share on other sites More sharing options...
Daz Type-R Posted January 12, 2012 Share Posted January 12, 2012 I have bought this one...... http://www.firstlightoptics.com/uhc-oiii-visual-filters/baader-uhc-s-filter.html Had it just over 3 weeks and not used it yet, bad weather, work and baby have got in the way, hoping to give it a go tonight on M42. If I do, will report back tomorrow. Link to comment Share on other sites More sharing options...
Doc Posted January 12, 2012 Share Posted January 12, 2012 To get the best out of an O111 filter you need aperture, your 8 " will be big enough, with practise you will be amazed at what it will show. But for starters get a good light pollution filter. Anyway that website is: />http://www.prairieastronomyclub.org/filtercomparisons.htm I'll put this in the guide and tutorial section as well. Link to comment Share on other sites More sharing options...
catman161 Posted January 12, 2012 Author Share Posted January 12, 2012 That's great advice thanks guys. I will look into (pun intended) a light pollution filter for starters then Thanks for that website doc. Felix Link to comment Share on other sites More sharing options...
Rusty Strings Posted January 12, 2012 Share Posted January 12, 2012 Micks right about the OIII on the veil. I also like to use it on M42. I know that is as bright as a nebula gets, but the filter gives it real form. The 2" inch is the one to go for as it can be fitted to the 2" adapter allowing eyepieces to be changed with minimum faff Link to comment Share on other sites More sharing options...
glider Posted January 12, 2012 Share Posted January 12, 2012 Rusty, I remember looking at that with you at kelling and it did work, even an 'imager' could see the difference. Link to comment Share on other sites More sharing options...
Guest Dex55 Posted January 12, 2012 Share Posted January 12, 2012 I do not like these words but the UHC filter is a more 'General purpose' filter. I find the OIII is more specialised, my humble two bobs worth. Link to comment Share on other sites More sharing options...
Doc Posted January 12, 2012 Share Posted January 12, 2012 I do not like these words but the UHC filter is a more 'General purpose' filter. I find the OIII is more specialised, my humble two bobs worth. Correct thats why most people buy a UHC first and the O111 second. Link to comment Share on other sites More sharing options...
Guest Dex55 Posted January 13, 2012 Share Posted January 13, 2012 Except me Mick, I bought the OIII first Doh! I did not do my homework which is not like me. I will have to buy a UHC before I head back out to Crete, question is which one? Link to comment Share on other sites More sharing options...
+Ibbo Posted January 17, 2012 Share Posted January 17, 2012 Coloured filters are good for planetary work a standard would be fine Link to comment Share on other sites More sharing options...
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