The IRIX 15mm f/2.4 Blackstone Lens is an ultra-wide-angle, rectilinear manual focus lens designed for DSLR cameras, providing a focal length of 15mm.
The IRIX 15mm f/2.4 Blackstone Lens is an ultra-wide-angle, rectilinear manual focus lens designed for DSLR cameras, providing a focal length of 15mm, is the ideal lens for outdoor and indoor photography.
Blackstone, the Premium version has a durable body made with aluminum-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 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.
The optical construction of the IRIX 15mm f/2.4 Blackstone Lens's wide-angle lens is superb, meeting the most demanding requirements of modern cameras. 15 elements in 11 groups include three elements of highly refractive glass and two of extra-low dispersion glass. Two aspherical lenses provide extremely high image quality and improve image brightness at the edges, while minimizing distortion and aberration.
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.
Features
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 FILTER THREAD -30 x 30 mm
BAYONET MOUNT -Nikon F, Canon EF
DIMENSION -114 x 100 mm (4.49" x 3.94")
WEIGHT -625 g
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