Webcam for polarized solar filter
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Webcam for polarized solar filter

[From: ] [author: ] [Date: 12-05-18] [Hit: ]
so they may have changed the lens system for all I know. Just did a quick search using webcam astronomy and most of the links that I looked at were dated by at least a year or more.But getting a pre-made system would be just as ecpensive.On the higher end of the scale, are the Imaging Source cameras. High pixel count,......
In looking for a webcam that would be sufficient for the upcoming Venus transit. I have a 10" Newtonian on a dobsonian mount. I need something that can take many pictures per second as I currently don't have an equatorial mount. I'm looking for anything from under $100 to $250 or slightly above. I obviously want something that will work well and can be modified to work with a telescope. I'm completely ignorant to this so any help or extra advice is much appreciated.

Thanks.

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You can get Orion's planetary camera -
http://www.telescope.com/Astrophotograph…

It'll work with a laptop so you can directly dump the video into the hard drive.

Or you can get a regular video capture system so you can put it on a monitor, record it into a camcorder or laptop -
http://www.telescope.com/Astrophotograph…

The other way is to get a regular webcam and take it apart. The lens system should able to be removed and replaced with a 1 1/4" eyepiece tube -
http://www.scopestuff.com/ss_wca1.htm

Now, I haven't messed with any of the latest webcams for that sort of thing, so they may have changed the lens system for all I know. Just did a quick search using 'webcam astronomy' and most of the links that I looked at were dated by at least a year or more.

But getting a pre-made system would be just as ecpensive.

On the higher end of the scale, are the Imaging Source cameras. High pixel count, great resolution and priced accordingly -
http://www.adorama.com/catalog.tpl?op=it…

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I like the Vista Imaging USB Vicam, about 12-13 yrs ago it was the highest quality imager available. It was sold later under the 3Com Home Connect USB webcam, model 0775. I think you can get these used for not too much on ebay.com now and then. The only problem I found with those is the IR filter glass gets clouded. It can be removed.
Later they are the Digi Watchport v3 model and newer ones, now are selling at about $190.
The chip is a high quality color one that is native 640x480, enhance to 1280x960 with software for WinXP and before, Linux and a new Win7 driver (none for Vista).
It has a 12mm x .7mm pitch screw mount glass lens that can be replaced by a ScopeStuff http://www.scopestuff.com/ss_wca1.htm
The software can be downloaded from various websites.
I would not use a polarizing solar filter. Those are glass and can crack under high heat. I would try a full aperture glass or film solar filter that is approved for telescope use on the sun. It keeps 99.99% of the IR and light out of the tube. It is very safe if securely fastened to the front.
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