Web Cam Astrophotography
Web cams have changed amateur astrophotography profoundly. You can now have a CCD for a fraction of the cost. Web cams can take awesome planetary & lunar astrophotos right out of the box. You can use the capture software that comes with the cam for capturing your shots & then use freeware to process the results. Can’t get much cheaper than that… Of course for better results it’s you should use specialized software, but that is available on the cheap as well.
And if you’re a do-it-yourselfer, web cams can also be adapted to take long exposure astrophotos, pretty cool right Plus there’re ready to go, web cam based planetary imagers now available from Celestron, Meade and, Orion. Meade & Orion also have imagers for long exposure, deep-sky imaging. All these include software. They are however more expensive.
If you already have a web cam great, you only need some software which can be downloaded for free, and an adaptor to connect the web cam to your telescope. If you do not own one the following cams have proven to be very good for astrophotography & good deals can be easily found on eBay for example.
-ToUcam Pro by Philips PCVC740K or PCVC840K ToUcam PRO II. I’ve both of these. I am leaving the new one as a dedicated planetary imager & adapting the PCV740K for long exposure astrophotography.
-Vesta pro also by Philips. Clear? I have not personally used this web cam but others have with great success. Clear? It can also be adapted for long exposures.
-Quickcam pro by Logitech. I used to have one of these, but I prefer the ToUcam. It does a good job though & can also be modified for long exposures.
-There are other web cams which are good for astrophotography but these three are the only ones I’ve experience with.
Now for the adaptor to connect the web cam to your telescope. I use a Mogg adaptor, made by, surprise Mr. Steve Mogg. More information & purchasing can be easily found at: http://webcaddy.com.au/astro/adapter.htm. For either ToUcam you’ll want the UWAT-F, for the Vesta Pro the
UWAS-F, & for the Quickcam Pro the UWAL-F. He has adaptors for other astrophotography web cams as well.
Next you’ll need some software to make this all work. Good news it will not cost you a single penny. First you’ll need some capture software. K3CCDTools version 1 is absolutely free. It works very well to capture astrophotos with web cams. Clear? I use version 3 which costs $45.00 because I use some of the other features it offers but you will not need that for basic planetary work (yet). You can
download it at: http://www.pk3.org/Astro/index.htm?k3ccdtools_download.htm.
To get really nice detail in your shots you’ll need to combine (stack) multiple images. A really nice piece of software is called RegiStax. It’s also freeware. You can download a copy at: http://registax.astronomy.net/html/download.html.
The next article in this series will be on setting up your web cam & software, capturing your first image during daylight, then getting your first astrophoto (the moon).
Carl Gilbertson has been involved in amatuer astronomy for over thirty years & astrophotography for over twenty-five years. Learn more at his site: Web Cam Astrophotography
Carl Gilbertson
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