Irix 11mm f/4 video review

March 7, 2017
News, Reviews
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The Irix 11mm f/4, manufactured by TH Swiss and not shipping yet, is a highly anticipated lens. Christopher Frost Photography posted a pretty informative, 10 minutes video-review of the Firefly version of the Irix 11mm f/4 (the other, more rugged one is Blackstone). He used a Canon [shoplink 7139]EOS 6D[/shoplink] and an [shoplink 29518]EOS M3[/shoplink] to test the Irix 11mm f/4.

Irix 11mm f/4 specifications after the break

Image size			35mm ”Full Frame”
Focal length			11mm
Field of View			126⁰ (diagonal)
Focusing range			0.28 m (0.92 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 (4x HR, 3x ASP, 2x ED)
Front filter thread			N/A
Rear gelatin filter slot			30 x 30 mm
Available bayonet mounts			Canon EF, Nikon F, Pentax K
Weight	Firefly	Canon	785 g (1.73 lbs)
		Nikon	723 g (1.59 lbs)
	Blackstone	Canon	815 g (1.80 lbs)
		Nikon	792 g (1.74 lbs)
Dimensions (D x H)	Firefly	Canon	103 x 118 mm (4.06” x 4.64”)
		Nikon	103 x 115 mm (4.06” x 4.53”)
	Blackstone	Canon	103 x 118 mm (4.06” x 4.64”)
		Nikon	103 x 115 mm (4.06” x 4.53”)