Irix 15mm f/2.4 Blackstone is a wide-angle manual focus lens for full-frame Nikon F-mount SLR cameras. It features a 15mm focal length, f/2.4-f/22 aperture range, 0.25m minimum focusing distance, weather-sealed construction, and 95mm front and rear gelatin filters.
Irix 15mm f/2.4 Blackstone is a wide-angle manual focus lens for full-frame Nikon F-mount SLR cameras. It features a 15mm focal length, f/2.4-f/22 aperture range, 0.25m minimum focusing distance, weather-sealed construction, and 95mm front and rear gelatin filters.




Irix 15mm f/2.4 Blackstone is a wide-angle manual focus lens for full-frame Nikon F-mount SLR cameras. It features a 15mm focal length, f/2.4-f/22 aperture range, 0.25m minimum focusing distance, weather-sealed construction, and 95mm front and rear gelatin filters.
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Irix 15mm f/2.4 Blackstone - manual focus ultra-wide-angle lens for Nikon F-mount full-frame SLR cameras. The lens has a 15mm focal length, f/2.4-f/22 aperture range, a minimum focusing distance of 0.25m, a weather-sealed construction, and supports 95mm front and rear gelatin filters.
Product information | |
|---|---|
| Product type | Ultra-wide-angle manual focus lens |
| Brand | Irix |
| Model | 15mm f/2.4 Blackstone Nikon |
| Connection | Nikon F |
| Format compatibility | 35mm full-frame Nikon SLR cameras |
Optical specifications | |
| Focal length | 15 mm |
| Maximum aperture | f/2.4 |
| Aperture range | f/2.4-f/22 |
| Diaphragm plates | 9 rounded plates |
| Optical design | 15 elements in 11 groups |
| Special optical elements | 3 high-refractive index elements, 2 extra-low dispersion elements and 2 aspherical elements |
| Viewing angle | 110° diagonally |
| Minimum focusing distance | 0.25 m |
Focus and control | |
| Focus type | Manual focus with focus confirmation support |
| Focus controls | Focus lock, infinity lock and hyperfocal distance scale |
| Aperture control | With a camera |
| Lens coating | Neutrino coating |
Design and compatibility with filters | |
| Housing material | Aluminum and magnesium |
| Weather protection | Weather-proof construction |
| Front filter thread | 95 × 1.0mm |
| Support for rear filters | 30 × 30 mm gelatin filters |
| Included accessories | Lens caps, lens hood, case, hard lens case, storage can and instruction manual |
Safety information | |
| Safety warning | Use the lens only with compatible Nikon F mount cameras and accessories. Do not touch the optical surfaces, and protect the lens from shocks and moisture exceeding its weatherproofing capabilities. Store the lens in a safe place when not in use. |
| Height | 150mm |
| Length | 200mm |
| Weight | 900g |
| Width | 150mm |