Never used, mint condition. The Vari-N-Duo is the best variable neutral density filter AND the best warming polarizer in ONE indispensable filter. Create exciting motion effects — and control glare and reflections and improve color saturation and tonal detail — all without stacking or changing filters. Just compose your shot, adjust focus, turn the polarizing ring to the desired look — and dial in density up to eight stops. It’s that easy. 300 firm. Will consider trades.