The sun taken through a Lunt LS60T Ha B1200 with IS DMK 31. This is a mosaic of 7 panels to get around the issue with a "sweet spot". Each panel was 500 frames at 1/30sec. Stacked in AutoStakkert and post processed in Registax. Photoshop used to assemble the mosaic.
(http://www.markshelley.co.uk/Astronomy/2014/sun16032014v2_small.jpg)
Larger version here:
http://www.markshelley.co.uk/Astronomy/2014/sun16032014v2.jpg
Good work Mark. Nice detail and prominences.
Carole