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runner70
journeyman
Reged: 08/21/10
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Night vision
#5617138 - 01/11/13 11:53 AM
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Having recently acquired a 8079 hp British night vision device, I would like to hear from anyone with ideas concering mating it with one of my telescopes-- Meade LB 16, meade sn 10. I expect my ETX would be too slow at f/15. Also, has anyone used a narrowband H-alpha (~10nm) filter in concert with nv and a telescope? 
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highfnum
Carpal Tunnel
Reged: 09/06/06
Loc: NE USA
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Re: Night vision
[Re: runner70]
#5617439 - 01/11/13 03:11 PM
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Yes there are some of us that have done this
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PEterW
professor emeritus
Reged: 01/02/06
Loc: SW London, UK
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Re: Night vision
[Re: highfnum]
#5617767 - 01/11/13 06:44 PM
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Keep the f ratio as small as you can get via focal reducer, though you might be limited by the in travel on your focussers.a 10 nm halpha filter would be good for emission nebulae if your intensifier has high gain and low noise, otherwise it might just give you noise. You could try some imaging light pollution filters, there have been several posts on these on this forum. I use a visible blocking filter to del with light pollution, rg630 glass. Intensifiers amplify anything you give them, you need to carefully block everything you don't want them to amplify for best performance.
Others can advise about your specific unit. Are you non US based?
Cheers
Peter
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runner70
journeyman
Reged: 08/21/10
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Re: Night vision
[Re: PEterW]
#5617984 - 01/11/13 08:44 PM
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Thanks for the tips-- I am in Livonia just outside of Detroit.
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