[avandonk]

Keep your eyes on Ebay for high quality fisheye lenses. Here is a bit of my fisheye collection of lenses from ebay. They are rare and not cheap.

These are all for 16mm or 1/2inch C-mount.
197 deg f/1.9 FL 1.98mm
167 deg f/1.5 FL 3.45mm
120 deg f/1.4 FL 4.0mm

The really annoying thing is since I have had these lenses it was cloudy on all nights of meteor showers. I have to stop them down to f/2.8 to get rid of light pollution at 2.6 sec exposure with a GStarEX. At a dark sky site they are very fast.

I have been a bit slack in this area as I have lots of other things to do and try to get correct.

Bert