The Canon 14mm Sumire Prime T3.1 is an ultra wide-angle, manual focus prime lens that covers full frame and Super 35 sensor formats providing center-to-edge resolution that supports 4K production. It features a PL mount and has focus scales marked in feet. The Sumire lens series is designed with the goal of creating pleasing facial close-ups across all ages, genders, and ethnicities. This effect is increased as the lens approaches its widest aperture. The 14mm offers a maximum T-stop of 3.1 and has an 11-blade iris that provides round natural-looking, out-of-focus highlights for a pleasing bokeh. The lens barrel features 300° smooth rotation from close focus to infinity, giving you a high degree of precision and consistent focus.

The lens is designed to minimize focus breathing. It offers focus distance markings on both sides of the barrel with the rear markings on an angled surface, making it readable from either side of the camera. Some of the markings are done in phosphorescent paint, making them easier to see them in dim conditions. All lenses in the Sumire series share the same 114mm front barrel diameter, focus rotation, and focus and iris gear positions, allowing for easier lens swaps.

Ultra Wide-Angle 4K Cine Lens    Covers Full Frame & Super 35 Sensors    Nuanced Image Characteristics    T3.1 Maximum Aperture, 11-Blade Iris    Minimized Focus Breathing    Dual Focus Markings on Angled Surfaces    Same Gear Positions Among Sumire Primes

The Sumire Prime Lens series features a nuanced look as the lens aperture approaches its maximum setting. This subtly modifies the textural renderings of the human facial close-up and a pleasing bokeh.

The lens features a large-diameter aspheric lens and anomalous dispersion glass, for high-resolution image reproduction from image center to image edge. The lens produces warm color tones that help to softly capture facial expressions, and shares a unified color balance with other Canon Cinema lenses.

The 11-blade clickless iris produces artistic and beautiful out-of-focus areas, creating a more three-dimensional bokeh. The use of an odd number of blades helps reduce flaring of specular highlights.

The Sumire Prime Lens series features a unified front diameter (114mm), rotation angle (300°) and gear position on the focus and iris rings.

The focus and iris rings are designed to maintain a consistent amount of resistance and operating torque in order to help provide the camera operator or assistant with predictable lens operation.

Lens markings are displayed on both sides of the lens. To improve visibility in dim light conditions, indicator markings with phosphorescent paint have been adopted for the front barrel for right-side viewing.

All lenses in the series except the 14mm accept a 105mm diameter threaded filter in the front of the lens.

Related Questions and Answers

Q: 1. Is there a filter solution for this lens?

A: You can use a mattebox with this lens to be able to use filters with it.

Q: 2. Are the lens optics, coatings and build quality of the Samyang 14mm T3.1 VDSLRII identical to the Rokionon 14mm T3.1 DS lens?

A: The lenses are made in the same factory by the same people. If there are significant differences between the two lenses, they have yet to come to light.

Q: 3. Other than brand marking, is the Samyang 14mm T3.1 VDSLRII identical to the Rokinon 14mm T3.1 DS lens? The Rokinon costs more, so I'm wondering if the build quality and/or coatings are different.

A: They are the same lens, different branding.

Q: 4. what is diferent about mark II and mark I lens?

A: The Mark II (Mk 2) versions feature revised placement of the focus and aperture gearing so that they are consistent with the other cine lenses made by the manufacturer.

Q: 5. Is there any way I can use Tilta Mirage matte box with this lens? The petal hood is built-in it cannot be removed.

A: The Rokinon 14mm T3.1 DSX Ultra Wide-Angle Cine Lens (EF Mount) will not be compatible in any way. I suggest using a mattebox with a sock, like the Camtree Camshade Video Matte Box.

Q: 6. Does this lens support 6k resolution? Can i put a circular ND filter & is there a 114mm circular ND filter?

A: This lens is capable of full 4K-Resolution performance. You can use 105mm screw in filters on all the Canon Cinema Prime Lenses. Here are three suggestions in good-better-best order: Tiffen 105mm Coarse Thread UV Protector Filter B&H # TIUVP105, B+W 105mm UV Haze MRC 010M Filter B&H # BWUVMC105, Sigma 105mm WR UV Filter B&H # SIUV105Q.

Q: 7. What kind of horizontal distortion does this lens render on full frame around the top and bottom of the frame? Does it have barrel distortion, bulge distortion, pincushion distortion, or wave/ wiggle distortion? Do lines stay straight horizontally?

A: All extreme wide lenses exhibit some level of barrel, chromatic, and rectilinear distortion. If you wish to avoid these negatives while using wide lenses, do not get too close to your subject and cause barrel distortion or tilt and cause leaning lines. That being said, rarely are there any wide lenses that are truly bad otherwise lens manufacturers would not make any money. Getting on to your question, this Xeen 14mm lens' performance is not known at this time. However, it is based on the Rokinon 14mm and we know that to be very good, especially in light of its low price. Final note: Wide and tele lenses have characteristics unique unto themselves. In the beginning of their camera career, people often look at these characteristics as negatives to be overcome. In time, the user knows what to look for and then exploits these characteristics to storytelling advantage.

Q: 8. If you had to choose one cinema lense for a short film with the C100 Mark II, is this lense a good option?

A: No, this is an ultra-wide lens and if you are shooting an entire film with one prime lens, a 35mm or 50mm would be much better. The Canon 24-105 L series zoom works perfectly with the C100 and can provide image stabilization and auto-focus as well as lens distortion correction in one compact package.

Q: 9. Is this lens compatible with Canon T3i ?

A: Yes it is

Q: 10. Can this lens work on aps-c sensor? I have an A6400 but I am curious if there will be crop on the image or if adapter is needed.

A: Yes, the Rokinon 14mm T3.1 DSX Ultra Wide-Angle Cine Lens (Sony E Mount), and all other full-frame lenses, can be used on an APS-C camera.