Gday Mardy
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Programs like Meades PEC Utility tool
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Just be warned, unless you have the very latest version ( not the one on their download site ), it WILL destroy your data.
IIRC you need to get the latest ASSuite update to get a version that "semi works". Also, note it will not do Alt PEC and gives very little real information about the data.
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I have a simple question However. I am about to purchase a De-Rotator as well as building a wedge
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If you get a wedge, you dont need a derotater.
If you want to stay AltAz and use a derotater, then forget about PEC.
Alt Az PEC is theoretically possible, but Meades implementation in the latest firmwares just does not work. RA PEC in Polar is OK
but forget PEC in AltAz.
If you want good ( long exposure ) piccies, get a wedge and get it polar aligned as best you can.
Andrew