? Why does this matter?

Cooke S7/i: With a T2.0 aperture, they offer an excellent balance between controllable depth of field and low-light capability. Ideal for productions that need reliability and a proven cinematic look.

Cooke S8/i: The T1.4 aperture is a game-changer. It allows working in extremely low light conditions without sacrificing quality, and offers unprecedented creative control over depth of field. The bokeh at T1.4 is simply magical.

⭐ Key Advantage of the S8/i

The reduction of up to 1kg per lens may seem modest, but it makes an abysmal difference in:

• Gimbal shoots: Less weight = greater stability and less operator fatigue
• Steadicam: More agile configurations and easier balancing
• Handheld camera: Long shoots with less physical fatigue
• Drones: Compatible with medium payload systems

? Real Example

The S7/i is the default choice for high-budget studio productions that need a reliable and proven cinematic look. Their robust construction and consistent optics make them ideal for feature films and TV series with extensive shooting schedules.

? Real Example

The S8/i is the ultimate tool for cinematographers seeking maximum creative flexibility. Its T1.4 aperture allows working in light conditions impossible for other lenses, while its reduced weight facilitates dynamic configurations that would be unfeasible with heavier lenses.

? Decision Flowchart

1. Do you need to work in extreme low light or maximum depth of field?
   • YES → COOKE S8/i ✅ (T1.4 aperture)
   • NO → Continue to point 2
2. Is mobility and agility a priority?
   • YES (gimbal, Steadicam, handheld camera) → COOKE S8/i ✅ (lighter)
   • NO (tripod, crane, studio) → Continue to point 3
3. Do you value MAXIMUM BOKEH QUALITY above all?
   • YES → COOKE S8/i ✅ (fully spherical design)
   • NO → Continue to point 4
4. Do you prefer the proven classic look with controlled budget?
   • YES → COOKE S7/i ✅ (more affordable, reliable)
   • NO → COOKE S8/i ✅ (latest technology)

❓ What is the real difference in low light performance between the S7/i and S8/i?

The S8/i, with its T1.4 aperture, gathers approximately one full stop more light than the S7/i (T2.0). In practical terms, this means you can shoot in half the light or use half the ISO on your camera to achieve the same exposure. On a Netflix production, this can be the difference between needing extensive lighting vs. working with practical lights and available light.

❓ Is the bokeh really that different between the two series?

Yes, significantly. While both series offer the characteristic "Cooke Look" with creamy bokeh, the S8/i, thanks to its fully spherical design (without aspherical elements), produces an even smoother, more organic, and three-dimensional bokeh. At T1.4, the S8/i creates focus transitions that seem "magical", with a painterly quality highly valued in high-end commercial and music video work.

❓ Will 1kg of weight difference per lens really make a difference?

Absolutely. In Steadicam work, every gram counts to achieve perfect balance. On gimbals (especially DJI Ronin 2 or Freefly MōVI), the difference between 3.4kg and 2.5kg can be decisive for stability and operator fatigue. On handheld shoots extending 10-12 hours, that 1kg per lens becomes cumulative weight that affects the entire crew.

❓ Which series is more suitable for Netflix/Prime productions?

Both are approved and widely used. The S7/i is a proven standard on Netflix and Prime productions, offering the classic "Cooke Look" that colorists know well. The S8/i, being more recent, is gaining popularity on high-profile productions seeking to push technical boundaries (especially in low-light sequences or where extremely shallow depth of field is desired for specific creative impact).

❓ Can I mix S7/i and S8/i lenses on the same shoot?

Technically yes, but not recommended. While both maintain the "Cooke Look", there are subtle differences in contrast, color response, and the character of flares/bokeh. Mixing them could complicate post-production color matching. If you absolutely need to mix them, it's recommended to use one series for main units and the other for B-camera or specific sequences that can be graded separately.

❓ Are there situations where the S7/i is technically superior to the S8/i?

The S7/i offers slightly higher contrast even at maximum aperture and more consistent edge-to-edge sharpness throughout the frame. For productions where deep depth of field is required (architectural films, automotive commercials, action with multiple focus planes), the S7/i at T4-T5.6 offers exceptional performance. Additionally, its robust construction makes it more suitable for extreme shooting environments (desert, extreme cold, high humidity).

❓ Do the S8/i have any optical compromises to achieve T1.4?

No. This is the remarkable achievement of the S8/i. Despite the faster aperture, Cooke has maintained exceptional optical quality: virtually absent chromatic aberrations, minimal breathing, and high contrast even wide open. The only "compromise" is aesthetic: some DP's prefer the slightly "cleaner" contrast of the S7/i vs. the more "organic" character of the S8/i - but this is a creative preference, not a technical limitation.

❓ Why isn't the S8/i simply the "replacement" for the S7/i?

Because they fulfill different niches. The S7/i remains the workhorse for large-scale studio productions that value robustness, proven reliability, and the classic "Cooke Look" at a competitive rental price. The S8/i is the high-end tool for DP's seeking the latest technology, maximum creative flexibility, and unmatched low-light performance - with a premium rental price. Both coexist in the Cooke ecosystem as complementary options, not sequential generations.

❓ Which is better for anamorphic conversions or special adapters?

The S7/i has been on the market longer and there are more tested and calibrated anamorphic adapters (like IB/E Optics IBE Raptor Anamorphic adapters). The S8/i, being newer and slightly more compact, may require custom adapter calibration. If your project depends on specific anamorphic adapters, consult your rental house beforehand.

❓ What are the most popular focal lengths in each series?

In both series, the prime set (25mm, 40mm, 50mm, 75mm, 100mm) is the standard core. The 18mm and 135mm are extremely popular additions for dramatic wide angles and medium telephoto portraits, respectively. The 300mm of the S7/i is a specialty lens for sports and wildlife. For commercials, the 50mm and 75mm are workhorses; for drama, 35mm and 50mm dominate.

Not sure which is ideal for your project?

Contact our technical team for personalized advice based on your specific script, genre, and shooting conditions. We're here to help you make the perfect decision.