Filters - mix and match ??

[Telescope40]

Hello all. 

This coukd be  overkill but I’m after using  Oiii filters on a few targets. Binoculars in use with switchable eyepieces. 

Got one. (castell brand).  My question is can you mix and match a pair of these filters.   One Castell and one Baader with no issues. 

Would this apply to other filters as well -  EG. - UHC? 

Thank you.  John 

[Louis D]

OIII filters in particular vary greatly between makes.  Different passband widths, different passband cutoff angles, different percentages of emitted light passed, etc.  You'll probably see two slightly different versions of the same scene when mixing and matching different makes, but your eyes will probably be able to cope with it.  Even from the same manufacturer, each filter varies slightly.  Lumicon used to mark each filter case with the percentage of light passed for each emission line relevant to that filter.

[mikeDnight]

They are not OIII, but I have two Celestron Wrattan 21 filters that are far from identical, however they work well together in my binoviewer. I'd say try them and see if they work for you.

[Telescope40]

Thank you for the replies.  Looking to move this on soon 

 

regards. John