Hi Programmer,
I bought a Baader UHC-S High Transmission Nebulae filter and was astounded at the difference I could see in Nebulae (M42 and Eta Carina for example) from my suburban skies. M42 in Orion was about 3 times bigger with this filter in. It brought out the contrast and made the whole thing more visible. However, thats all it did. The light loss overall for this one was very noticeable on everything else and I couldnt really see anything while roaming around. Basically it was a nebula filter ONLY and it did that job VERY well ($129). This is my original post on the UHC after Les pointed out this UHC-S filter's limitations to me
http://www.iceinspace.com.au/forum/s...ad.php?t=29679
I swapped it over the next day for a Baader Moon and Skyglow Filter ($85) and used the difference to buy a weather station and another eyepiece and I must say the decision was worth it.
Planetary detail is up, more objects visible in polluted moonlit nights and generally more stars visible. I hardly take this out of the 12.5mm ED eyepiece I have as it helps dramatically in my area as the point I look at the most is South East and this just happens to be in the direction of Sydney and the Blacktown area.
I have heard that the OIII filter is the weapon of choice for the people who say they only need or want one filter and that's the one. However, it would probably be specific to DSO's and blot out most general sky targets like the UHC-S did? I think for general viewing overall, the M&S one is hard to beat for price and performance, especially in light polluted skies!
Chris