Designed for up to 8K cine-style image capture and covering up to full-frame size sensors, the black Leica L-mount 11mm T4.3 Cine Lens from IRIX incorporates multiple internal and external design features. This 11mm lens will produce a classic wide-angle look or up to a 123° viewing angle in the 2.39:1 widescreen format, depending on your camera's sensor. External features include a 95mm front diameter, 0.8 MOD gears, luminous focus marks in feet, and a detachable 1/4"-20 support foot.

Internally, nine blades produce smooth, rounded bokeh for natural-looking out-of-focus highlights. To help eliminate aberrations and distortion, the IRIX 11mm T4.3 Cine Lens is constructed with 16 optical elements in 10 groups, including four HRI (high refractive index) and two ED (extra-low dispersion) elements. A Multi-Start Thread focusing mechanism delivers quiet, precise focusing even in wet or humid conditions or in extreme temperatures. This lens has 180° of focus, 75° of iris rotation, and an 86mm front filter thread, and it includes front and rear caps. Four seals protect against inclement weather and dust.

Covers Full-Frame Sensor Size    43.3mm Image Circle, Leica L--Mount    Aperture Range: T4.3 to T22    Luminous Focus Marks in Feet    95mm Front Diameter    Rounded Aperture Blades    180° Focus / 75° Iris Rotation    4 x Seals for Weather Resistance

The IRIX Cine 11mm is a wide 43.3mm full-frame lens that uses 16 optical elements, including four high refractive index (HRI) and two extra low-dispersion glass (ED) elements, to create crisp cinematic shots in resolutions up to 8K while keeping the focus breathing at a minimum. This lens features a relatively fast T4.3 maximum aperture and can be stopped down to T22.

Related Questions and Answers

Q: 1. is it compatible with Blackmagic Pocket Cinema 6K Pro?

A: Yes, IRIX 11mm f/4 Firefly Lens for Canon EF is compatible with Blackmagic Design Pocket Cinema Camera 6K Pro. Both products are desing with Canon EF mount.

Q: 2. Can someone please explain or help me to understand how to read the hyperfocal scale on this lens? I have never had a problem using hyperfocal scales on any of my other lenses, but this one is quite perplexing to me, there are so many values on it.

A: If you are old school and know how to use the hyperfocal scale on manual lenses, then work as you have before. If you wish, you can also use the innovative hyperfocal indication line but really it is meant for others. That is because, ever since auto focus lenses came into use, they have mostly come without manual aperture scales since they had no place for the scales to be applied. Therefore a generation of photographers has grown up not knowing what they are for or how to use them. With Irix's hyperfocal line, the new user determines what aperture they are using, moves the focus ring to line up the aperture number on the Irix hyperfocal line with the lens focus mark. Then they look to the aperture numbers on the traditional scale to see the hyperfocal distance or the area that is in acceptable focus. To old users it is not necessary, to new users it is very helpful.

Q: 3. Is this a fisheye lenses? Thanks

A: The IRIX 11mm f/4 Firefly Lens for Canon EF is an ultra-wide-angle lens, but it's not technically a fisheye lens--it doesn't create a circular image and it has been designed to minimize some of the distortion inherent in a lens with a focal length this wide.

Q: 4. Does this support the manual focus confirmation with recent DSLRs?

A: Yes, it does.

Q: 5. Why does this lens have electronics? Is the aperture electronically controlled?

A: Per the manual: The lens aperture is operated electronicallythrough the camera.

Q: 6. Is this compatible with any clamp on matte boxes or does the front piece protrude too much?

A: The IRIX 11mm T4.3 Cine Lens (Canon EF, Meters) doesn't have filter threads so there wouldn't be a way to get the adapters of the clamp on matte boxes on to the lens.

Q: 7. How is the iris controlled on a Nikon F-mount camera? Is there a 'G' style control lever? Or is it purely electronically controlled?

A: The aperture is electronically controlled.

Q: 8. Can the aperture be controlled with a dead adater like the FotodioX Pro TLT ROKR Tilt-Shift Adapter for Nikon F Lens to Sony E ?

A: The aperture in the IRIX 11mm f/4 Firefly Lens is only controlled electronically. So the Fotodiox tilt/shift adapter would not be able to control the aperture.

Q: 9. What mm size UV protective filter fits this Irix 11mm Blackstone Lens?

A: Due the shape of the front element on the IRIX 11mm f/4 Blackstone Lens for Canon EF, it doesn't accept screw in UV protective filters.

Q: 10. Will the lens' "adaptive" focus ring work with my Lumix S1's auto-focus or do I need a compatible follow focusing system?

A: The IRIX 150mm T3.0 Telephoto Cine Lens has no electronic communications with a camera body and requires a focus system to be in place for focusing.