Camera lens - Irix 15mm f/2.4 Firefly Pentax
Product reference: 14-7640172190036

The 15mm f/2,4 ultra-wide-angle manual focus lens for " Pentax " SLR cameras features a 110° diagonal angle of view and a 0.28m minimum focusing distance. The 15-element design, nine rounded diaphragm blades, focus lock, and compatibility with 95mm front filters ensure versatile use.

Camera lens - Irix 15mm f/2.4 Firefly Pentax

Product reference: 14-7640172190036

The 15mm f/2,4 ultra-wide-angle manual focus lens for " Pentax " SLR cameras features a 110° diagonal angle of view and a 0.28m minimum focusing distance. The 15-element design, nine rounded diaphragm blades, focus lock, and compatibility with 95mm front filters ensure versatile use.

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Irix 15 mm f/2,4 Firefly Pentax


15mm f/2,4 ultra-wide-angle lens with manual focus for Pentax DSLR cameras. Its diagonal angle of view is 110° and the closest focusing distance is 0.28 m. The lens consists of 15 optical elements, has nine rounded diaphragm blades, focus lock and a 95 mm front filter thread.


  • Ultra wide angle 15mm prime lens for Pentax DSLR cameras
  • Bright f/2,4 aperture, suitable for landscape, architecture, nature and astrophotography
  • Advanced optical design with high refractive index, extra-low dispersion and aspherical elements ensures sharp, low-distortion images
  • Manual focus with focus lock, infinity lock and hyperfocal scale for precise control

Product information

Product type Ultra-wide-angle lens with manual focus
Brand Irix
Model 15 mm f/2,4 Firefly Pentax
Compatible cameras Pentax DSLR cameras
Image format 35mm full frame

Technical specifications

Optical design 15 elements in 11 groups
Optical elements 3 high-refractive index elements, 2 extra-low dispersion elements and 2 aspherical elements
Aperture range f/2,4-f/22
Aperture control With a camera
Focus type Manual focus with focus confirmation
Focusing functions Focus lock, infinity lock and hyperfocal scale
Lens coating Neutrino coating
Front filter thread 95 × 1.0mm
Rear filter holder 30 × 30 mm gelatin filter slot

Physical properties

Housing material Lightweight plastic
Dimensions 114 × 100 mm
Weight 608 grams

Included accessories

Complete set Front and rear lens caps, petal lens hood, soft lens case, storage box, and instruction manual

Safety information

Safety warning Use the lens only with compatible Pentax DSLR cameras and for photography. Handle glass elements with care, keep the lens covered when not in use, and protect it from excessive moisture, heat, dust, and shock.

Height150mm
Length200mm
Weight800g
Width150mm
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