Lenses
IRIX 11mm f/4 Blackstone Lens for Nikon F
- Nikon F-Mount/FX Format
- Aperture Range: f/4 to f/22
- Three Aspherical Elements
- Two ED and Four HR Elements
- Neutrino Coating
- Manual Focus Design with Focus Lock
- UV Fluorescent Engraved Markings
- Depth of Field and Focus Distance Scales
- Weather-Sealed Magnesium Alloy Housing
- Rounded Nine-Blade Diaphragm