Irix 11mm f/4.0 Blackstone and Firefly Lenses
The Irix 11mm f/4.0 is an extremely wide full frame rectalinear lens with an angle of view of 126°. It employs 4 high refractive lenses, 2 ED lenses, 3 aspherical lenses to guarantee very low distortion, as low as 3,13%, which makes Irix 11mm f/4.0 lens unique in its class. The special Blackstone version of the lens has engraved UV light reactive markings enable easy operation in low light conditions to facilitate the perfect photo. The Irix 11mm f/4.0 will be available next year in Canon EF, Nikon F and Pentax K mounts.
Irix are also showing a very early prototype of a 45mm f/1.4 full-frame lens at the Photokina show in Germany.
|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)|
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