I recently upgraded the focuser on my 10" SCT to a Moonlight focuser with the wider attachment to take a f6.3 FR/corrector inside the focuser. I hadnt trialled this until last night a was quite pleasantly surprised how well it worked. The FR just screws into the focuser tube internally so that the FR is always a predetermined space from the chip.
Also tragically I used 7timer to inform me that the clouds would dissipate over Brisbane
:rofl : in the late evening and as a true believer managed to get 5x15 min Ha images before the moon came up. Typically I managed to walk into the counterweight arm and mess up my polar alignment so after an hour messing about I re-aligned and got the best alignment yet in the dome with OSC and RMS of 0.12 and o.13 respectively using PhD. Guiding was done with a 72mm WO guidescope and DSI II Pro camera.
Levels and curves then slight sharpen in PS.
Also as a giggle I let Bahtinov grabber automatically focus the frame using ASCOM. Doh!!! It worked.
Comments welcomed.