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moonomaly
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51 ExcellentAbout moonomaly
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Rank
Nebula
Profile Information
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Gender
Male
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Interests
Space, energy, propulsion.
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Location
Leicestershire
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Having watched some youtube videos of the stars through night vision devices i wanted to do the same and see it for myself, the light-gathering power of the P8079HP is impressive, the manufacturer's manual says it multiplies incoming light by 100,000. Some specs on the tube here from the manufacturer's manual : https://www.dropbox.com/sh/rnnkvasq5t6o2dy/AADmr9Ftu9FrdnRR2OohXQJpa?dl=0 It takes from 5 to 6.75 DC at 35mA max in my experience though the manual says 50mA max, these tubes are old so mileage varies. To use it as a stand-alone unit it needs an objective lens in front of the input and an ocular/webcam/video-device-of-some-sort plus power to the device, usually in the form of an AA battery or project box with a switch, and maybe a power LED if you're feeling fancy. A few people have built some very nicely finished units, this thread is informative and has lots of photos, though most of it is to do with using it for hunting : https://www.ar15.com/forums/Armory/DIY-Cascade-Tube-Thread-/18-359614/?page=1 I've been putting my one together, i'm gclarke66 on that thread, the most recent post since it's a fairly inactive thread.
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Thanks for replies, ended up getting a raspberry pi plus the IR camera. I was hoping i'd see something in the sky but i've seen nothing, i suppose the sensors are short-range, should probably read more before embarking on these projects! What i have been wanting to do for years is skywatching with night vision, i finally bit the bullet and got one of those P8079HP NV cascade tubes, it's nearly done, will post a thread on it. Cheers and beers
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Lots of videos on youtube, mostly using a 35mm film tube for a housing but i can't find one that's about removing the IR filter AND attaching to a scope. I opened up my logitech C270 webcam but the filter is part of the surface-mounted CCD chip so i'm not touching that, i need one where the filter is part of the lens assembly so that it's easily removable, or even breakable, but also one that is easy to fit to the star diagonal. Any advice/experience/failure stories greatly received
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Well i thought i'd ask the experts I still don't quite understand though, i understand about the secondary mirror,but i don't understand why the dark disc stays in the centre of Mars when the telescope isn't moving, i woudl have thought it would appear to edrift to the left as Mars moves to the right?
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Low power Tesla coil build
moonomaly replied to Alien 13's topic in Physics, Space Science and Theories
Yes i think you could beat 1M. I know how long it takes,i started manually, then i built a jig operated by electric drill, then years later i bought this freom ebay : http://lechacal.com/wiki/index.php/Albawinder