Depending on your Imaging CCD sensor size you might be better of with a Optec Nextgen or similar quality 3.3 Focal Reducer. The Hyperstar has long been on my wish list but as Alex has pointed out I am concerened about the stress on the Corrector. I have the SXVF-H9 now and i chose this body for its slim design for a future hyperstar use but i think i will stick with F6.3 and maybe a F3.3 in the short term future for now. Some very pretty pictures have been produced using a Hyperstar C8 and Qhy8 combo, and the do tempt me so.
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