Perkil8r Posted January 28, 2013 Share Posted January 28, 2013 I understand the idea of using a H alpha filter for luinence etc, but when and why use a H beta? What sort of image does it produce? And what could that data be used for if not part of a full NB component image. Link to comment Share on other sites More sharing options...
Guest Kheldar Posted January 28, 2013 Share Posted January 28, 2013 You would use it in exactly the same way, but in place of Ha. There are very few Hb targets though ... horsey and umm ... that's about all I know Mine won't even be taken out of it's case (came in a set) it's going to get that little use Link to comment Share on other sites More sharing options...
Perkil8r Posted January 28, 2013 Author Share Posted January 28, 2013 Ah, I see. Would the same sort of thing apply to OIII then? Link to comment Share on other sites More sharing options...
Doc Posted January 28, 2013 Share Posted January 28, 2013 I know the horsehead can be seen visually through a Hbeta filter. Link to comment Share on other sites More sharing options...
Brantuk Posted January 28, 2013 Share Posted January 28, 2013 O3 really brings out the fainter nebulae - try it on the witches broom - I reckon you'd get a fair bit of use from that one Link to comment Share on other sites More sharing options...
philjay Posted January 28, 2013 Share Posted January 28, 2013 I have a visual lumicon h beta and they call it the horsehead filter. There arent many targets for hb only but I find it enhances emmission nebula, whether an imaging onevwould do the same im not sure but its alot of cash to spend for something that wouldnt get much use. O111 has more targets, planetary etc, also take a look at some of the false colour images done with ha, o111 and s11 very effective Link to comment Share on other sites More sharing options...
Guest Kheldar Posted January 28, 2013 Share Posted January 28, 2013 Just to add if you're planning on getting these for the DSLR - PLEASE don't ... wait for the CCD Link to comment Share on other sites More sharing options...
Perkil8r Posted January 28, 2013 Author Share Posted January 28, 2013 Not particularly, just I saw one and wondered what it would be used for etc. Link to comment Share on other sites More sharing options...
Sheila Posted January 28, 2013 Share Posted January 28, 2013 Also California Neb is supposed to be good i think with it Link to comment Share on other sites More sharing options...
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