SWFeral Loc: SWNM

I have no idea what any of you are talking about but this is beautiful.

Ballard Loc: Grass Valley, California

Thanks to all for the kind comments.

Ballard Loc: Grass Valley, California

The Canon 500mm F4.0 IS USM lens is superb, when used alone the stars are crisp (no flaring) right to the edge of the field. The 2X teleconverter adds just a small amount of distortion at the edge but not much. I've been piggy backing this camera and lens on a 5 inch APO and using the APO for guiding on an old Losmandy G11 mount. I expect a cooled CCD would do even better on the noise and also allow a lot more of the HA lines through that are currently blocked by the IR filter built into the camera.