HOTECH SCA Field Flattener
Hi to all users of these devices. Because there was no documentation with my new HOTECH and nothing on their web site about this issue, I wrote to them recently asking for clarification of the distance that had to be maintained between the SCA and the imaging plane of the CCD/DSLR etc. They have sent a reply which I thought I would share for the benefit of IIS members:
" ..... The SCA Field Flattener requires 55mm distance from the shoulder of the T-thread to your QHY8. You will have to use additional T-thread ring to add up the difference for optimal imaging result. ... "
OK. there you have it.
Peter.
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