Irix 15mm f/2.4 Review
May 4, 2017
|
Mark Goldstein
|
Specifications
| Image size | 35mm „Full Frame” | ||
| Focal length | 15 mm | ||
| Field of View | 110⁰ (diagonal) | ||
| Focus range | 0.25 m (0.82 ft) - ∞ | ||
| Focus type | manual with lock function | ||
| Aperture range | f/2.4 – f/22 | ||
| Aperture control | via camera | ||
| Aperture shape | 9 rounded blades | ||
| Lens construction | 15 elements in 11 groups 3x HR, 2x ED, 2x ASP | ||
| Front filter thread | 95 x 1.0 mm | ||
| Rear gelatin filter slot | 30 x 30 mm | ||
| Available mounts | Canon EF, Nikon F, Pentax K | ||
| Dimensions (DxH) | 114 x 100 mm (4.49” x 3.94”) | ||
| Weight | Firefly | Canon | 608 g (1.34 lbs) |
| Nikon | 581 g (1.28 lbs) | ||
| Blackstone | Canon | 685 g (1.51 lbs) | |
| Nikon | 653 g (1.44 lbs) | ||