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WTS: Celestron 2" UHC/LPR Filter (SOLD)
Posted: Wed Jun 20, 2007 7:51 pm
by weixing
Hi,
Celestron 2" UHC/LPR Filter: S$100.
Seldom use and in good working condition.
Have a nice day.
Re: WTS: Celestron 2" UHC/LPR Filter
Posted: Wed Jun 20, 2007 9:30 pm
by VinSnr
weixing wrote:Hi,
Celestron 2" UHC/LPR Filter: S$100.
Seldom use and in good working condition.
Have a nice day.
bro, this filter good for dslr imaging in spore or not?
Posted: Thu Jun 21, 2007 1:11 am
by weixing
Hi,
bro, this filter good for dslr imaging in spore or not?
I'm not quite sure as I only use this a few time for imaging... the recent one is the M51 image that I post recently. Below is my S$0.02 on this filter:
1) this filter will dim down star like most LPR filter and I found it difficult to focus visually through view finder of my DSLR due to dimer star... IMHO, you won't have this problem if you focus via a computer.
2) Base on my 2 minutes exposure image, the filter will have some colour shift as the image will turn out a bit greenish like most LPR filter. Not quite sure at longer exposure since I only use it up to 2 minutes exposure.
Anyway, I put this on sale as I no longer using 2" eyepiece and I got a very good 1.25" UHC filter for visual use. Also, I realized that even this filter allow me to have more than 3 minutes of exposure, my polar alignment won't allow me to take image of longer exposure than that as I'm not using guiding. Since I still can took decent image up to around 2 minutes under Singapore sky without the filter, so I prefer to took image without the filter as it's easier to focus through view finder visually.
Have a nice day.