Quote:
Originally Posted by DavidTrap
Thanks for posting that Peter.
I assumed it would look something like that - is there a critical spacing between the front element of the AP and the rear of the solar filter?
What frame rate do you achieve with the QHY533M?
DT
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The spacing doesn't matter. It's really like putting Baader film ahead of the
objective, as front mounted elatons require a parallel, rather than converging wavefront.
The field illumination of a front mount tends to be far more uniform than rear mounted systems, which often have annoying hot or sweet spots.
The QHY533M seems to top out at around 20fps with 16 bit data and a full frame. (8 bit gives banding). That said, if you use a ROI rather than the full field, 80-90 fps is typical.