Irix 11mm f/4.0 Lens - LightPoint

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Irix 11mm f/4.0

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Irix 11mm f/4.0

Specifications

General characteristics

Brand

Irix

Model

11mm f/4.0

Purchase type

One time

Price notes

Price and weight shown are for Firefly (lighter) version, there is also the Blackstone (full metal) version at 695 €/ $825+VAT, weighting 790 gr.

Variant name	for Canon EF	for Nikon F	for Pentax K
Full name	Irix 11mm f/4.0 for Canon EF	Irix 11mm f/4.0 for Nikon F	Irix 11mm f/4.0 for Pentax K
Type	fixed focal
Producer Site	link
Announced	2017-02-20
In production	Yes
Price - launch (EU)	€ 525
Price - launch (US)	$ 595+VAT
Weight	730 gr.
Length	103 mm.
Diameter	118 mm.
Amazon offer

Mount	Canon EF	Nikon F	Pentax K
Sub-type mount	-	FX / AF-S (Full frame)	KA2 (Full frame)
...for sensor / crop	Full frame 1.00x
Focals
Nominal focal range	11 mm.
Equiv. focals (35mm)	11 mm.
Zoom Ratio	1x
Powered zoom	No
Zoom extends	No / n.a.
Aperture
Max aperture	f/4
Aperture blades	9
Aperture ring	No
Clickless aperture	No
Customizable ring	No
Focus
Autofocus	No
Internal focus	Yes
Focus drive	Direct
Focus distance info	Yes
Focus notes	focus lock switch
Min focus distance	27 cm.
Max magnif. (opt.)	0.07x
Max magnif. (eff.)	0.07x (35mm. equiv)
Build
Stabilization	No
N° of lenses/groups	16/10
Special elements		4 refractive	4 refractive
Aspherical	3
Extra Low Dispersion	2
High Refractive Index	4
Front filter	Not supported
Rear filter	30 mm.
Weather sealing	Yes
Electric contacts	Yes

Useful Links

Reviews in English

Photography Life 8.4/10
[Tested on Nikon variant]
At the time being, it is the widest rectilinear lens available, offering good sharpness, very controlled amount of distortion – and that all in a body that is perfectly weather-sealed (Blackstone version) [...] On the negative side, it is a heavy and chunky lens, with a rather slow aperture.