Thread: 03 or nebula ?
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  #7  
Old 14-04-2012, 11:17 AM
rjbruce (Rob)
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Join Date: Feb 2012
Location: Melbourne
Posts: 17
UHC filter

Hi David,

I would agree with the general purpose nebula / UHC style filter, they are a good all round filter and will not dim the image through a six inch as much as a OIII or H-beta as the UHC has a wider band pass that includes the OIII and the H-beta band lines. Some recommend an 8" minimum scope for the smaller bandpass O-III and H-beta filters.

We have seen the horse head through a 12" light bridge at a dark site, but it certainly didn't jump out at you.

Hope that helps.
Rob
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