Irix 11mm f/4 Blackstone Lens for Pentax K

Model #IL-11BS-PK

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Specifications

Physical

Weight 1.74 lb (790 g)
Filter Thread Rear Gel:
Dimensions (DxL) Approx. 4.65 x 4.06" (118 x 103 mm)

Performance

Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 126°
Minimum Focus Distance 10.83" (27.5 cm)
Focal Length 11mm
Diaphragm Blades 9, Rounded
Elements/Groups 16/10
Aperture Maximum: f/4Minimum: f/22
Camera Mount Type Pentax K

Features

Autofocus No
Product Highlights
  • Pentax K-Mount/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • Three Aspherical Elements
  • Two ED and Four 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 11mm f/4 Blackstone Lens for Pentax K
  • Front Lens Cap
  • Rear Cap for Pentax K-Mount Lenses
  • Hard Lens Case (Black)
  • Limited 5-Year Warranty
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