red dwalf Posted February 23, 2014 Share Posted February 23, 2014 not knowing alot about filters i have just bought in good faith a Baader ha filter to go with my Astronomik LRGB filters, having noticed that the Baader filter is alittle taller than the Astronomik ones but didn`t think anything of it until i fitted it to the filter wheel cartridge, now the ha filter just catches the inside of the filter wheel opening which protrudes into the inside of the filter by 2 or 3 mm, anyone got round this problem before or can offer and suggestions apart from get another filter or filter wheel. Link to comment Share on other sites More sharing options...
glider Posted February 23, 2014 Share Posted February 23, 2014 I had this with some really old Celestron filters Rob, but my Astronomik Ha/OIII/SII and a Baader LP filter fit in my Atik manual 5 filter wheel OK. Looking at the Baader it is thicker than the Astronomiks though. Link to comment Share on other sites More sharing options...
Guest Kheldar Posted February 23, 2014 Share Posted February 23, 2014 (edited) That's an OLD filter mate, they changed to a slimline fitting (5 or 6 mm tall) a good few years back .... Your only option I can think of it to email Tru Tek - he will sell you a new set of low profile filter cells - you move the glass from the old cell to the new cell Edited February 23, 2014 by Kheldar Link to comment Share on other sites More sharing options...
red dwalf Posted February 23, 2014 Author Share Posted February 23, 2014 thanks guys, guy i bought it off said it was a new a unused filter, swine Link to comment Share on other sites More sharing options...
red dwalf Posted February 23, 2014 Author Share Posted February 23, 2014 just had a play with the filter wheel in the light and realised the adapter although tight can be unscrewed from the housing, maybe if i can get a small adapter ring or maybe a rubber o ring it might get away with it Link to comment Share on other sites More sharing options...
glider Posted February 23, 2014 Share Posted February 23, 2014 I've got a no name manual filter wheel Rob, maybe try it to see if it is deeper than yours? Link to comment Share on other sites More sharing options...
Guest Kheldar Posted February 23, 2014 Share Posted February 23, 2014 Is it a manual filter wheel? I've got it in the back of my head you can either turn the filter carousel back to front (inside the filter wheel) OR you can turn the filter wheel back to front and use it backwards ... can't remember what that little gem was relevant to but I've had to do that somewhere at some point WAY back in deepest darkest history ... Link to comment Share on other sites More sharing options...
glider Posted February 23, 2014 Share Posted February 23, 2014 @Stephen, yes, that rings a bell. Plus, the 1.24" fittings thread into the housing but the thread can project into the housing a mm or 3 which then binds inside with the filter bodies. Link to comment Share on other sites More sharing options...
red dwalf Posted February 23, 2014 Author Share Posted February 23, 2014 manual filter wheel, and your explanation Noel is spot on, only screws in 1 or 2 mm too far and clips the Baader filter Link to comment Share on other sites More sharing options...
glider Posted February 23, 2014 Share Posted February 23, 2014 Oh, right, there are thread on spacers you can buy to solve that then Rob. Link to comment Share on other sites More sharing options...
Guest Kheldar Posted February 23, 2014 Share Posted February 23, 2014 (edited) Rob easier way and I'm now almost sure this is what you need to do: Option a) Screw the filters into the OTHER side of the carousel Option b ) Rotate the filter wheel back to front (you may need to change adaptors from back to front too) So if logo faces scope, make logo face mount One of these will almost certainly solve the problem - I've been here before Edited February 24, 2014 by Kheldar Link to comment Share on other sites More sharing options...
glider Posted February 24, 2014 Share Posted February 24, 2014 Like I said earlier, what he says ^^^^ does sound familiar. Link to comment Share on other sites More sharing options...
red dwalf Posted February 24, 2014 Author Share Posted February 24, 2014 i`ll have a play with it again in the morning, thanks guys nothing seems to just work does it L.O.L. Link to comment Share on other sites More sharing options...
red dwalf Posted March 1, 2014 Author Share Posted March 1, 2014 sorted, thanks to Graham who made me a little threaded ring a while back, i dug it out of the camera case and fitted it to the adapter, it would be nice if the adapter screwed in alittle further but it seems secure and tight. Link to comment Share on other sites More sharing options...
Guest Kheldar Posted March 2, 2014 Share Posted March 2, 2014 Did you try it back to front? Seems less than ideal to increase the optical length (thus mucking up reducer spacings, etc) if you don't have to? Link to comment Share on other sites More sharing options...
red dwalf Posted March 3, 2014 Author Share Posted March 3, 2014 think your proberly right Stephen, i`ve found a few other adapters i`ll have a go at later failing that i have a nice big flat gringing stone which wouldn`t take to long to rub 1 or 2 mm off the bottom of the original adapter Link to comment Share on other sites More sharing options...
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