The 21mm S4/i T2 Prime Lens from Cooke features optimal optical performance, /i Technology lens data transfer, and an ergonomic mechanical design with smooth, cam-based focus adjustments. This 21mm lens incorporates an aperture range of T2.0 to T22, focus scales marked in both feet and meters, and color matching with other modern Cooke cine-style lenses. The S4/i lenses minimize flare, distortion, veiling glare, and spherical aberrations even at the full aperture setting. The S4/i lenses are PL-mounted, making them compatible with most professional cine-style cameras.

Cooke's /i Technology provides a wealth of lens data crucial for matching shots, VFX work, and post-production. Metadata parameters include focal length, focus distance, lens aperture, depth of field, hyperfocal distance, the lens serial number, and more. A modular design ensures easier maintenance and servicing of the S4/i lens series.

Covers Super35 Format Sensor    T2.0 Maximum Aperture    Color Matches Modern Cooke Lenses    /i Technology Metadata Transfer    Smooth Cam-Style Focus Mechanism    110mm Front Diameter    8-Blade, Linear Iris    Minimal Flare, Distortion & Aberrations    Modular Design for Easier Servicing

Maximum optical performance even at full aperture, with superior control of flare, distortion, and spherical aberration.

Contacts in the mount sync with /i compatible cameras and accessories, providing lens data including focusing distance, aperture, depth of field, hyperfocal distance, serial number, owner data, lens type, and focal length in both meters and feet.

All Cooke S4/i prime lenses are color balanced to match all modern Cooke lenses.

Designed with a fast maximum T2.0 aperture and Super35 format coverage.

Every index mark is labeled, enabling more precise focus control.

An award-winning cam-style focus movement is paired with a large lens barrel diameter, enabling smooth focus pulling with an increased number of focus markings, particularly at close focus. Spherical aberration has been controlled, eliminating compensation of changes in back focus with aperture, and a four-point contact bearing provides backlash-free movement.

Focus marks are engraved in large, clear numerals in feet on one side of the barrel and in meters on the other.

A 110mm front diameter is compatible with most matte boxes and adapters and is common to most of the S4/i series.

An eight-blade linear iris provides an aperture range of T2.0 to T22.

A scratch-resistant, anodized finish provides a durable, hard-wearing surface to meet the most demanding environmental conditions.

Related Questions and Answers

Q: 1. It's the end of March and the lens is still out of stock. Any updates on expected dates? Thanks in advance

A: I apologize, but this type of request cannot be taken care of through this feature of our website. Please contact our Customer Service department by entering Live Chat, emailing directly to cs@a href= http://bhphoto.com, target= _blank bhphoto.com,/a or calling us toll-free at 800.221.5743.

Q: 2. When are these lenses expected to arrive?

A: It's the end of March and the lens is still out of stock. Any updates on expected dates?

Q: 3. Will the Zeiss Loxia 21mm f/2.8 Lens for Sony E Mount work with the Sony FS7?

A: Yes and the 21 mm provides a very useful field of view to work with.

Q: 4. Is the lens hood removable?

A: No, the hood is permanently attached.

Q: 5. Would this work on c300 mark iii

A: At this time there are no RF to EF lens adapters that would allow the Vazen 40mm T2 1.8x Anamorphic Lens (RF Mount) lens to mount to a C300 camera model.

Q: 6. I'm wondering whether this lens might be a good choice for my full-frame Pentax K-1? I realise I'd also need an M-adapter. Tnx!

A: The Voigtlander Ultron 21mm f/1.8 Lens is a sharp manual lens. Note we do not carry a M mount lens to K mount camera.

Q: 7. Which adapter should I use for this lens to Canon EOS M?

A: https://a href= http://www.bhphotovideo.com/c/product/1150820-REG/fotodiox_lm_eos_m_p_pro_lens_mount_adapter.html target= _blank www.bhphotovideo.com/c/product/1150820-REG/fotodiox_lm_eos_m_p_pro_lens_mount_adapter.html/aIs this one ok?

Q: 8. I read most reviews for this lens, and lot of people using this lens with SONY A7 body.So, I had SONY A7 also. Do I need some adapter for A7 body or just fit in with A7 body without converter or adapter?

A: You'll definitely need an adapter for this lens as it's a different mount than what would fit natively. I got the fancy voigtlander vm-e close focus adapter which I would recommend if you like to take closer shots. With it you can get those great large aperature DOF wide angle shots since this lens has that capability

Q: 9. I had a 21mm voigtlander color skopar lens which when mounted on a m10 had bad purple color vignetting. Does this lens have the same or similar problems?

A: The Voigtlander Ultron 21mm f/1.8 Lens has some lateral color fringes (secondary lateral chromatic aberration), visible if you look for this sort of thing when shot digitally, but otherwise it's invisible for normal use.

Q: 10. I bought this lens for use with Fujifilm XT-3. Focus peaking is very hard to do unlike other lenses like Voigtlander 58 1.4. The distance scale seems off by 1 or 2 meters! For example, if I want to focus at 3 meters, I must set the distance on the lens at about 1.2 meters. Why is this happening? Could it be because of the adapter? I am using K&F Concept Leica M to Fuji X adapter.

A: Yes, the K&F Concept Leica M to Fuji X adapter, is causing the "distance Scale" on the Voigtlander Ultron 21mm f/1.8 Lens to be inaccurate.