New Irix 11mm f/4 lens for Pentax K-mount announced

irix-11mm-f4-lens
Irix announced a the long rumored Irix 11mm f/4 lens for Pentax K-mount:

IMAGE SIZE 35mm „Full Frame”
FOCAL LENGTH 11 mm
FIELD OF VIEW 126⁰ (diagonal)
FOCUSING RANGE 0.275 m (0.9 ft) – ∞
FOCUSING TYPE manual with lock function
APERTURE RANGE f/4.0 – f/22
APERTURE CONTROL via camera
APERTURE SHAPE 9 rounded blades
LENS CONSTRUCTION 16 elements in 10 groups
FRONT FILTER THREAD no
REAR GELATIN FILTER SLOT 30 x 30 mm
AVAILABLE MOUNTS Canon EF, Nikon F, Pentax K
DIMENSIONS (DXH) 118 x 103 mm (4.49” x 4.05”)
WEIGHT 730-790g (1.61 – 1.74 lbs)

irix-11mm-f4-firefly-blackstone-lens
irix-11mm-f4-firefly-lens
irix-11mm-f4-lens-design
Just like with the previous 15mm f/2.4 model, Irix will offer two different version of the 11mm f/4 lens – Firefly & Blackstone (both models pictured above):

Version of the lens Firefly Blackstone
HOUSING MATERIAL lightweight materials for weight savings aluminium-magnesium alloy, premium finish
HOUSING OUTER FINISHNG standard anti-scratch
FOCUSING RING MATERIAL anti slip coating all-metal anodized ring with grooved surface
METHOD OF APPLYING MARKINGS printed engraved
TYPE OF PAINT USED FOR MARKINGS standard UV light reacive paint
WEATHER
SEALING
FRONT LENS ELEMENT no no
FOCUS LOCK RING yes
FOCUSING RING yes
CAMERA MOUNT yes
PROTECTIVE CASE INCLUDED soft lens pouch hard lens case

Irix is also planning to announce a 45mm f/1.4 lens for Pentax K mount.

Irix via Photorumors

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  • Mistral75

    At Photokina TH Swiss AG also showed a prototype of an Irix 45mm f/1.4, to be available in Pentax K-A mount as well. A big beast with a 82mm filter thread.

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