Nikon (FC-E8) 0.21x Lens Converter

Pros: Excellent optics, reasonable price, fairly lightweight.

Cons: Unusual 28mm threads. Larger lenses will need costlier FC-E9 adapter.

The Bottom Line: Good for small digicams, even non-Nikon. Must get 28mm thread adapter. May not work on larger lenses. As with all circular fisheyes, crop circle reduces imaged pixels.

Review: This is the best circular fisheye adapter I could find for my small digicam. Actually, for all practical purposes it was my only choice, as the other fisheye adapters on the market are either very cheap (under $50) and very awful, or expensive heavy ...