Irix 15mm f/2.4 Blackstone Lens for Pentax K

Model #IL-15BS-PK

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Weight 1.51 lb (685 g)
Filter Thread Front: 95 mmRear Gel:
Dimensions (DxL) Approx. 4.49 x 3.94" (114 x 100 mm)


Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 110°
Minimum Focus Distance 11.02" (28 cm)
Elements/Groups 15/11
Diaphragm Blades 9, Rounded
Focal Length 15mm
Aperture Maximum: f/2.4Minimum: f/22
Camera Mount Type Pentax K

Packaging Info

Package Weight 3.0 lb
Box Dimensions (LxWxH) 6.8 x 5.6 x 5.5"


Autofocus No
Product Highlights
  • Pentax K-Mount/Full-Frame Format
  • Aperture Range: f/2.4 to f/22
  • Two Aspherical Elements
  • Two ED and Three HR Elements
  • Neutrino Coating
  • Manual Focus Design with Focus Lock
  • UV Fluorescent Engraved Markings
  • Depth of Field and Focus Distance Scales
  • Weather-Sealed Magnesium Alloy Housing
  • Rounded Nine-Blade Diaphragm
In The Box
  • IRIX 15mm f/2.4 Blackstone Lens for Pentax K
  • 95mm Front Lens Cap for 15mm f/2.4 Blackstone or Firefly
  • Rear Cap for Pentax K-Mount Lenses
  • Lens Hood for 15mm f/2.4
  • Hard Lens Case (Black)
  • Limited 5-Year Warranty
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