Irix Lens 15mm f/2.4 Blackstone for Pentax K
The ultra wide-angle, rectilinear manual focus lens designed for DSLR cameras. Providing a focal length of 15mm, this lens is ideal for outdoor and indoor photography.
The new special features such as focus lock, infinity click and hyperfocal scale set a new level of manual focus lens functionality.
Thanks to sophisticated optical construction and special neutrino coating, colour aberration, ghosting and flare effects have been reduced to the absolute minimum.
With a minimum focusing distance of 0.28 metre (0.92 ft) and 9 rounded shaped aperture blades, the lens stands for supremely smooth out-of-focus areas.
The design of the lens allows the use of 95 mm screw-in filters at the front in the petal-shape lens hood and gelatin filters at the back of the lens.
Blackstone, the Premium version has durable body made with aluminium-magnesium alloy, that ensures foolproof protection of your lens, even in extreme situations.
Its construction is equipped with four rubber seals, that protect the camera mount and focusing mechanism against the dust and moisture, as well as front or side accidental water splashes.
Engraved fluorescent markings enable easy read-out and operation in low light conditions.
Technical data:
| Image size: | 35mm ”Full Frame” |
| Focal length: | 15mm |
| Field of View: | 110° (diagonal) |
| Focusing range: | 0.28 m (0.92 ft) - ∞ |
| Focusing 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 bayonet mounts | Canon EF, Nikon F, Pentax K |
| Dimensions (D x H): | 114 x 100 mm (4.49” x 3.94”) |
| Weight: | with Canon mount 685 g (1.51 lbs) |
