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Equipment Discussions >> Electronically Assisted Astronomy

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Furmo
member


Reged: 01/17/13

Loc: York, UK
Re: DIY Intensified IIT setup for around $200 project. new [Re: runner70]
      #5997874 - 07/30/13 06:48 AM

I used parts from an eyepiece projection photography adapter I never got around to using - it basically allows me to screw my cascade tube directly onto the 2" focuser of my Startravel 120 f5 refractor. This means I can easily switch from NV to normal observing and my telescope didn't need any adaptation at all.

I also fashioned an eyepiece holder to the rear and rearranged the elements in a cheap eyepiece I had so I can use that rather than needing a camera, or looking at the little rear screen from a distance.

I can upload photos of it tonight if you like but my efforts are very 'industrial' to say the least - lots of poor soldering, zip ties and duct tape! I also have another tube with a camera lens attached for hand-held viewing - neither look very pretty but they both work well.


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runner70
member


Reged: 08/21/10

Re: DIY Intensified IIT setup for around $200 project. new [Re: Furmo]
      #6004317 - 08/03/13 03:29 AM

Which tube are you using, and what are your results?

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: DIY Intensified IIT setup for around $200 project. new [Re: runner70]
      #6008737 - 08/06/13 02:26 AM

Quote:

I am currently trying to adapt my p8079hp for astronomy viewing. I have encased it in pvc tubing and will employ a separate mount to mate it to my f/4 sn 10". Has anyone combined this nv tube with a telescope, and with what results? I am to test it tonight with a ~10nm h alpha filter. Any suggestions?



Where do you get these tubes in the USA?


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seryddwr
Innocent Bystander
*****

Reged: 02/19/10

Loc: La-la land.
Re: DIY Intensified IIT setup for around $200 project. new [Re: mattflastro]
      #6023586 - 08/13/13 05:44 PM

The only place I've seen the Gen I cascade tube is here at 80GBP (about $123 US, plus $7 for international shipping) it's tempting. I've had my eye on one of these, but they cost quite a bit more.

Edited by seryddwr (08/13/13 05:55 PM)


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PEterW
professor emeritus


Reged: 01/02/06

Loc: SW London, UK
Re: DIY Intensified IIT setup for around $200 project. new [Re: seryddwr]
      #6023649 - 08/13/13 06:13 PM

Anchor supplies in the UK a bit cheaper but more on postage.... Only sources I know in the world.... Get them while there is still stock left.

Peter


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runner70
member


Reged: 08/21/10

Re: DIY Intensified IIT setup for around $200 project. new [Re: Furmo]
      #6033284 - 08/18/13 05:44 PM

I'd be interested in seeing your results; which cascade tube are you using?

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seryddwr
Innocent Bystander
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Reged: 02/19/10

Loc: La-la land.
Re: DIY Intensified IIT setup for around $200 project. new [Re: runner70]
      #6088167 - 09/18/13 02:28 PM

I just found a decent looking, new-old-stock GenII tube on fleabay, which I just procured for $300. When I get around to doing something with it, which may not be soon, as I'm trying to finish my dissertation by early spring, I'll start a thread. I'll probably attach it to my Lumenera camera.

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Live_Steam_Mad
sage


Reged: 07/24/07

Loc: Moss Bank, St.Helens, England
Re: DIY Intensified IIT setup for around $200 project. new [Re: seryddwr]
      #6092765 - 09/21/13 01:38 AM

I'd be very interested to see a cheap DIY version of something not too unlike the Collins I3 Piece (an eyepiece IIT device using Gen 3 USA Military technology that can't be easily bought by me in England) but that uses either one single gen 1 tube (CHEAPEST possible tube please! Either used or new) or cascaded in 2 or 3 stages. Please tell us all how you construct such a thing, I believe there would be much interest in it. I have access to a Myford 7 lathe etc so could make stuff (maybe) and at least I can solder well so that's something I can do if I have to. Let us know how it works out.

Here is the Collins I3 piece for reference ;-

http://www.ceoptics.com/ccd/i3.html

http://www.ceoptics.com/I3messierpics.html

Regards,

Alistair G.

Edited by Live_Steam_Mad (09/21/13 01:49 AM)


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PEterW
professor emeritus


Reged: 01/02/06

Loc: SW London, UK
Re: DIY Intensified IIT setup for around $200 project. new [Re: Live_Steam_Mad]
      #6092882 - 09/21/13 06:21 AM

Someone in the uk did put one of the cascade systems on a scope, did have some effect, but not amazing from what I heard.
Problem is anything less than the best is not going to perform as well. Build a cascade system and try... Cheap and you have a nifty (though heavy) night vision system if it doesn't work do so well in the scope.

Cheers

PeterW


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seryddwr
Innocent Bystander
*****

Reged: 02/19/10

Loc: La-la land.
Re: DIY Intensified IIT setup for around $200 project. new [Re: seryddwr]
      #6122682 - 10/07/13 02:47 PM

I found the wiring diagram to power this puppy and built a quick and dirty power converter. The thing has a built-in high voltage power supply and takes an input of 2.7 volts. It has an adjustable gain. I'm going to test it at the scope. It has a bonded fiber optic output that acts like a screen, so I won't need an eyepiece for a quick and dirty test. (I tested it indoors, with a camera lens for the input.) I'll post a pic when I get back from gazing tonight. Everything is already loaded and I'm only waiting for the batteries on my little tablet PC to fully charge.

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seryddwr
Innocent Bystander
*****

Reged: 02/19/10

Loc: La-la land.
Re: DIY Intensified IIT setup for around $200 project. new [Re: seryddwr]
      #6250729 - 12/13/13 11:20 AM Attachment (26 downloads)

It's been a while since I've posted on this. I was able to do a few tests with the device, I used a very wide angle, f/2.5 lens to do a test. It works, but I'm not sure if I saw any more stars than I could with my eye, but again, the thing is very wide angle. With my Dob, everything was brighter than with my eye, but I couldn't hold it very steady. It looks like it might work to intensify the image in front of a video cam, to try and negate the read noise. We'll see.

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De Lorme
professor emeritus
*****

Reged: 12/30/08

Re: DIY Intensified IIT setup for around $200 project. new [Re: seryddwr]
      #6253359 - 12/14/13 08:18 PM

Hi David, What's the quality like using the EEV P80 79 HP
on globular clusters and nebulas? Most definitely I'm interested. I found a web site called Sourcing intensifiers
in which Andy and Damian made an intensifier{showing how to make one} and gave some reviews on how it worked but not
enough on globular clusters. De Lorme


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PEterW
professor emeritus


Reged: 01/02/06

Loc: SW London, UK
Re: DIY Intensified IIT setup for around $200 project. new [Re: De Lorme]
      #6254161 - 12/15/13 10:31 AM

"Proper" intensifiers resolve globs very well, not had the chance to try my cascade on them.... Clouds :-(

Peter


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De Lorme
professor emeritus
*****

Reged: 12/30/08

Re: DIY Intensified IIT setup for around $200 project. new [Re: PEterW]
      #6254384 - 12/15/13 12:17 PM

Peter, when you say "Proper" would a EEV P8079 HP be more than adequate? I don't need the very best{because I can't afford the best LOL} just don't want a tube that's not quite up tot the task. So I would be willing to squeeze the budget to get a tube that's more than adequate. This is exciting! I have a CGEM with a MoonLight focuser and a 2" diagonal. I would like to put the tube in the diagonal and look through it like a regular eyepiece. I think
the MoonLight would handle the weight what do you think?
De Lorme


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Dxvid55
member


Reged: 12/16/13

Re: DIY Intensified IIT setup for around $200 project. new [Re: De Lorme]
      #6256681 - 12/16/13 05:29 PM

I have just started a blog about using the kind of intensifier mentioned in the first post. You can see it here if you are interested,

http://dxvid55.blogspot.co.uk/

Clear skies!


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De Lorme
professor emeritus
*****

Reged: 12/30/08

Re: DIY Intensified IIT setup for around $200 project. new [Re: Furmo]
      #6257228 - 12/16/13 10:25 PM

Hi Furmo, YES please put up some photos so we can see how your using the Cascade on your refractor. Thanks for doing this. De Lorme

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PEterW
professor emeritus


Reged: 01/02/06

Loc: SW London, UK
Re: DIY Intensified IIT setup for around $200 project. new [Re: De Lorme]
      #6257508 - 12/17/13 04:19 AM

Great info, good to see another UK person trying this, keep us posted on how it performs!

PEterw


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De Lorme
professor emeritus
*****

Reged: 12/30/08

Re: DIY Intensified IIT setup for around $200 project. new [Re: PEterW]
      #6258908 - 12/17/13 08:26 PM

From what I've read the EEV P8079 HP tube cannot be used directly on a{CR6"} OTA without cutting the tube.
Are their any image intensifiers that could be adapted to
an eyepiece and then used on my refractor? Thanks De Lorme


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nytecam
Postmaster


Reged: 08/20/05

Loc: London UK
Re: DIY Intensified IIT setup for around $200 project. new [Re: De Lorme]
      #6260550 - 12/18/13 05:22 PM

Correct me if I'm wrong but won't the EOD output screen radiate over 180degs hemisphere- how do you efficiently collect and reimage this onto the output camera?

A CCD sensor in contact with the output screen would be interesting IF there was no intervening cover glass etc to the sensor


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PEterW
professor emeritus


Reged: 01/02/06

Loc: SW London, UK
Re: DIY Intensified IIT setup for around $200 project. [Re: nytecam]
      #6261266 - 12/19/13 03:01 AM

Yes, but like a TV, but it's bright and you can take a picture of it with any camera you can poke down the eyepiece.

PEterW


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