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Old 12-16-2007, 12:21 PM
Kevin Kevin is offline
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Default Hyperstar and filters

Well I have the new hyperstar 3 and the filter adapter on the way. But i have some questions on what filters to use. Scott at Starizona recommended a LPR filter for it which is now on the list of things to add. I also cuyrrently have a O-III. Do you think it would help to get a H-alpha filter to help bring out some more red detail on my images? If so would a Lumicon Ha work or do I need more narrow band pass? Whats the difference between a Narrow band and standard filter?
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Old 12-17-2007, 06:32 PM
romeropaul romeropaul is offline
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Default Narrowband

Hi,

I have been told both by people at the AICCD conference and also Dean that you dont want to go less than 10nm wavelength width for you narrowband filter. Basically, you wont be getting a narrowband filter if it doesnt state 'narrowband' or the width (i.e. 10nm, 5nm etc). I may be mistaken however.

Paul
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Old 12-22-2007, 03:37 AM
twmiller123 twmiller123 is offline
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I was also told not to go less than 10nm on narrowband filters. I bought a 10nm Ha filter specifically for use with my Hyperstar 10. It seems to work very well. I have never tried my 6nm Ha filter with the Hyperstar so I cannot tell you what would happen when using a narrower bandpass than 10nm. I really enjoy narrowband imaging. It allows me to image on moonlit nights without fogging. Also, with the hyperstar, the usual 8 - 10 minute exposures are not necessary. I find that 4 minute exposures work fairly well.
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Old 12-25-2007, 02:14 AM
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Ozy Ozy is offline
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I shoot with both an IDAS LPS filter and an IDAS V3 Narrowband Filter. The LPS filter made all the difference in the world for shooting in my backyard in the Phoenix area. I can actually capture useful data instead of a big yellow glowing ball.

IDAS LPS Filter Graph:



IDAS Narrowband Filter:



I mix my IDAS UV/IR cut filter with the Narrowband filter for complete blockage.

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Old 12-25-2007, 08:43 AM
Kevin Kevin is offline
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Thanks guys, I will have to look into the LPS filter.
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