Additional information of Irix 11mm f/4 lens

Additional information of Irix 11mm f/4 wide-angle prime lens now available online.

The Irix 11mm f/4 ultra-wide-angle, rectilinear manual-focus lens designed for Canon EF, Nikon F, Pentax K mount full-frame DSLR cameras.

Providing a focal length of 11mm, this new lens model is ideal for outdoor and indoor photography whether it is photojournalism, landscapes or architecture.

irix-11mm-f4-lens-1

New Irix 11mm f/4 lens information

The full-frame lens specs also include a special design and coating. The construction consists of 16 elements in 10 groups. It a minimum focusing distance of 0.275m (~0.9ft), a 9-blade aperture, and weather sealing against dust and moisture.

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
There will be two models and separated as the Irix Blackstone and Irix Firefly.  Blackstone uses a durable aluminum and magnesium body and engraved markings. Blackstone weighs 790g (1.74 lbs). Firefly is lightweight and features an ergonomic focusing ring. Firefly weighs 730g (1.61 lb).

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-11mm-f4-lens-design-550x311

For more info, visit Irix website.