IMPORTANT! Long time exposures without purpe corner!

Started Oct 19, 2005 | Discussions thread
Nordstjernen
OP Nordstjernen Veteran Member • Posts: 6,876
Software

Please wait for further information about this software. I tought Frank's web page had an e-mail option, but there is not.

This equatorial mount is a tracking device wich is used to follow the motion of the star (compensate for Eart's rotation). This is used with telescopes, and is needet for astrophotography. If not used., the stars will make trails within a few seconds with telephoto lenses.

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Sony Alpha a99 Sony a7
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