HN2 Nikon Lens Hood with Dew Heater Built in. Prevents dew on the camera lens for those longer guided exposures. Operates on either 6 volt at 70 ma or 12 volt at 140 ma. Series resistors are mounted in black heat wrap tubing circling the lens hood, terminated with a miniature phone jack. This hood comes with a 55-52 adapter/reducer ring, which can be removed or left in. Used very successfully for wide angle and comet astrophotography.
Will sell for $25.00 USD, shipped anywhere in North America for $3.50