Hi All,
The ED80 was sitting in the corner of the observatory gathering dust.
A pity as it's a fine imaging scope, so I dragged it out, cleaned it up and tried to balance it on the G11 (unsuccessfully with the SBIG gear on the back).
The Rosette nebula is really big, so I wanted to use this scope to take a picture, as it turn out even the ED80 has too much focal length for this one. I might have to try my hand at a mosaic!
The AOL did all the guiding at this focal length at about 5Hz as I found a bright guide star
Anyway, here 'tis.
There's some obvious edge of field artifacts from the ED80, but not bad really.
Larger version available with image details
here
Cheers
Stuart