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.

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)

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