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Cooke S4/i 50mm T2.0
lens_setactive
The Cooke S4/i normal — a 50mm on Super 35 that's arguably the most-used prime in the company's catalogue. Same T2.0 / 110mm front / Cooke rendering as the rest of the set.
50 mm
Focal length
T2
Max aperture
31.5 mm
Image circle
Super 35
Format
PL
Mount
1.85 kg
Weight
Use
When it's pulled
The medium-shot and over-the-shoulder default for dialogue. The "if you only carry three primes" middle choice in a 25 / 50 / 75 set.
Fit
Compatibility
Native mount
PL
Common camera bodies
ARRI ALEXA family (S35 mode)RED Helium 8KSony VENICE (S35)ALEXA Mini LF (S35 windowed)
Adapter / mount notes
Super 35 image circle (~31.5 mm). Mounts on full-frame bodies but the corners vignette outside windowed S35 mode.
Coverage
Sensor coverage
Auto-derived from this lens's 31.5 mm image circle against manufacturer-published sensor active areas.Run a per-aspect calculation →
| Sensor | Active area | Diag | Coverage |
|---|---|---|---|
| IMAX 65mm 15-perf | 70.41 × 52.63 mm | Ø87.91 mm | Vignettes |
| ARRI ALEXA 65 Open Gate | 54.12 × 25.58 mm | Ø59.86 mm | Vignettes |
| ARRI ALEXA 65 4K 16:9 | 50.79 × 25.58 mm | Ø56.87 mm | Vignettes |
| RED V-RAPTOR 8K VV | 40.96 × 21.6 mm | Ø46.31 mm | Vignettes |
| VistaVision 8-perf 35mm | 37.72 × 24.92 mm |
Technical
Specifications
| Spec | Value |
|---|---|
| Focal length | 50 mm |
| Max aperture | T2 |
| Image circle | 31.5 mm |
| Format | Super 35 |
| Anamorphic | No |
| Close focus | 0.51 m |
| Weight | 1.85 kg |
| Front Ø | 110 mm |
| Mount | PL |
| Focus breathing | low |