I can see few good advices already and wanted to add a comment on your initial comment related to OAG
Quote:
Originally Posted by TheDecepticon
and I should be able to thrash the EQ6 for a while with a 130 and OAG so weight is not too high.
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If you want to have OAG please check the backfocus beforehand. I believe QSI is the only CCD with built in OAG and any other CCD will requite an external OAG which will take some additional backfocus.
TEC flatteners have about 78-85 mm backfocus which leaves little or no space to fit a OAG after the flattener.
Regards
Sad