Features:
- Industry's best aperture ring covers a 8-stop range markings, clearly indicating actual number of f-stops. No more guesswork! (Patent pending). - Compatible with both Nikkor G lens & F lens (include non-AI & AI lens mounts). - Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA (patent pending). - Increase maximum aperture by 1 stop. - Increase MTF. - Makes lens 0.71x wider. - The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.
List of incompatible lenses
Nikkor 2.1cm f4
20/2.8 AI-S More information: Features | Product colour | Black, Chrome | ![](/p.gif) | Material | Brass, Chrome | ![](/p.gif) | Compatibility | Nikon G Sony |
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