Irix 15mm f/2.4 Firefly Pentax IL 15FF PK

The Irix 15mm f/2.4 lens is designed to deliver the best optical performance and match full frame DSLR cameras demands. Providing a focal length of 15mm, this new lens model is ideal for outdoor and indoor photography whether it is photojournalism, landscapes or architecture.
Combining capabilities specific to analogue photography with ingenious technology and solutions the new special features such as focus lock, infinity click and hyperfocal scale set a new level of manual lens functionality. Focus lock enables to lock the focus ring at any time. Hyperfocal distance scale gives information about the accessible range for depth of field. When the focusing ring is set in the "infinity" position, there is a noticeable "click" making it easier to find the value without looking.
Each lens is equipped with a weather sealed construction that protects the interior against dust and moisture.
The Irix is equipped with a front filter mount and a rear gelatin filter slot.
Irix Firefly: high quality mechanism in a handy design. Ergonomic focusing ring offers the freedom to capture the most ideal moment, whether it is big city architecture or wildlife scenery. The most lightweight lens in its class. Challenge accepted.

Technical data

IMAGE SIZE 35mm "Full Frame"
FOCAL LENGTH 15 mm
FIELD OF VIEW 110⁰ (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 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)