Cooke S4 vs S7: Which Cooke Prime Set Should You Choose?
Cooke primes are among the most requested lenses in our catalogue, and the question we hear most often is simple: should I buy a Cooke S4/i set or a Cooke S7/i set? Both share the warm, smooth rendering known as the “Cooke Look”, both open to T2.0 and both are PL-mount cinema primes built for professional crews. The real difference is the sensor they were designed for, and that changes everything from budget to weight. Here is how to decide in the Cooke S4 vs S7 debate.
Cooke S4/i: the Super 35 workhorse
The S4 series has been a reference on feature films, TV drama and commercials for decades. The /i versions add Cooke’s /i Technology, which sends lens data such as focal length, focus distance and iris to compatible cameras and lens control systems.
- Coverage: designed for Super 35 sensors and 35mm film.
- Speed: T2.0 across the set.
- Look: sharp but gentle, with flattering skin tones and soft fall-off.
- Market: a large second-hand market, which keeps prices accessible and makes it easy to find complementary focal lengths.
If you shoot on a Super 35 camera such as the ARRI Alexa Mini or the ARRI Amira, an S4/i set is often the most sensible investment. See for example our Cooke S4/i LDS 8-lens set (metric) or the Cooke S4 5-lens set (Imperial).
Cooke S7/i: the full-frame answer
The S7/i was developed for large sensors. It keeps the S4 rendering philosophy but covers full-frame and large-format cameras.
- Coverage: full frame, for cameras such as the ARRI Alexa Mini LF, the Sony Venice or RED full-frame bodies.
- Speed: T2.0.
- Look: the Cooke Look on a larger canvas, with shallower depth of field at equivalent framing.
- Trade-offs: larger, heavier and more expensive than the equivalent S4/i focal lengths.
Our Cooke S7/i 8-lens metric set is a good example of a complete full-frame kit.
Cooke S4 vs S7 at a glance
| Cooke S4/i | Cooke S7/i | |
|---|---|---|
| Sensor coverage | Super 35 | Full frame |
| Maximum aperture | T2.0 | T2.0 |
| Mount | PL | PL |
| Lens data | /i Technology | /i Technology |
| Size and weight | Compact for a cinema prime | Larger and heavier |
| Used market | Wide, more affordable | Smaller, higher prices |
For exact focal lengths, weights and image circles, see the official data sheets on the Cooke Optics website.
Which one should you choose?
Choose the S4/i if your main camera is Super 35, if you rent to productions that mostly shoot Super 35, or if budget per focal length matters. You can also use S4/i lenses on a full-frame camera in a Super 35 recording mode.
Choose the S7/i if you own or rent out full-frame cameras, want the shallow depth of field and wider field of view of a large sensor, and need the lens set to cover the full sensor without cropping.
If you own both formats, many rental houses keep an S4/i set for Super 35 jobs and add an S7/i set when demand for full frame grows.
The rest of the Cooke family
- Cooke Mini S4/i (T2.8): smaller and lighter, ideal for gimbals, drones and handheld work. See our 6-lens Mini S4/i set.
- Cooke S5/i (T1.4): a faster Super 35 option for low light and very shallow focus. See our 8-lens S5/i set.
- Cooke Panchro/i Classic: a modern rehousing inspired by the vintage Speed Panchro, for a softer, more nostalgic image. See our Panchro/i Classic set.
- Cooke Anamorphic/i: for the anamorphic look, read our guide How to Choose Anamorphic Lenses.
Buying a used Cooke set
Check the focus scale (feet or metric), the condition of the glass and coatings, the smoothness of focus and iris rings, and whether the /i contacts work with your camera. A recent service and collimation report is a strong point when buying or reselling.
Looking for a Cooke set? Browse our offers or contact us with the focal lengths you need. Want to sell your Cooke lenses? Visit sell your equipment. Need a service? See our maintenance and repair page.