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Posted: Mon Apr 04, 2005 7:40 pm
by MooEy
somehow true la, in that case we should just buy a OIII and a H-b to enjoy all the nebs.
a LPR is not really that much cheaper than a UHC, alot depends on the brand. a IDAS LPR cost more than the lumicon UHC.
~MooEy~
Posted: Mon Apr 04, 2005 10:36 pm
by weixing
Hi,
Both have their usage actually. If you are observing nebula, a UHC filter will be very useful. But if you are observing star cluster or galaxy, don't use the UHC filter... just use the LPR filter to reduce the light pollution.
Have a nice day.
Posted: Tue Apr 05, 2005 2:50 pm
by elton
IMHO, the UHC is a better buy than the broadband LPR for the following reasons :
1) LPR's can be used on anything but the effect is not impressive on everything -- only slight improvement if at all discernable.
2) UHC 's improvement on nebulae in general is usually quite dramatic --there is some wow factor
People who are interested in buying but are unsure of how it will look on your scope can try before you buy. See to believe.
Check out this website on effects of filters
http://pages.sbcglobal.net/raycash/filters.htm
As for what filters are suitable in small scopes, my experience has been that UHC is useful in 80mm scopes onwards whereas OIII is too dim for my taste. In a 5" Mak onwards, OIII is usable to good effect on the brighter nebulae. H-beta is almost useless in Singapore. I have tried a number of times but was unable to see the Horsehead or other HB objects through the teleport.
Posted: Tue Apr 05, 2005 3:32 pm
by weixing
Hi,
IMHO, the UHC is a better buy than the broadband LPR for the following reasons :
1) LPR's can be used on anything but the effect is not impressive on everything -- only slight improvement if at all discernable.
2) UHC 's improvement on nebulae in general is usually quite dramatic --there is some wow factor
People who are interested in buying but are unsure of how it will look on your scope can try before you buy. See to believe.
Check out this website on effects of filters
http://pages.sbcglobal.net/raycash/filters.htm
As for what filters are suitable in small scopes, my experience has been that UHC is useful in 80mm scopes onwards whereas OIII is too dim for my taste. In a 5" Mak onwards, OIII is usable to good effect on the brighter nebulae. H-beta is almost useless in Singapore. I have tried a number of times but was unable to see the Horsehead or other HB objects through the teleport.
Agree...
If you can only afford a filter, get the UHC filter.
Have a nice day.
Posted: Tue Apr 05, 2005 3:48 pm
by VinSnr
UHC filter does best only on nebulaes. People need to know this. If you expect everything to jumps out at you when you are using this filter, then you will be sorely dissapointed.
But I owned the UHC for years and it is still with me. That tells you a lot how much I value it.
On nebulaes, the difference is quite dramatic. The background will be darker (and some dimmer stars dissapear), but more details on the nebula will be seen. Works best on objects like M42 and M8. Even M17 is impressive in it. However, some people prefer the view without the filter because they can see the surrounding stars and starlight more clearly. Which makes the whole view more complete and pleasing.