Sony FX5 Manual: Complete Technical Guide & Configuration Tutorial for X-OCN RAW, Open Gate and Triple ISO
The Sony FX5 arrives as the first Cinema Line camera with internal X-OCN RAW 16-bit recording, Open Gate 5K mode and triple base ISO. This definitive technical manual analyzes configuration, professional workflows and essential parameters to completely master this cinematographic tool.
Actualizado: 02/08/2026
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Sony FX5 Technical Manual: Complete ILME-FX5 Configuration Guide
Executive Summary for Professional Operators
The Sony FX5 (ILME-FX5) announced on July 22, 2026, positions itself between FX3 and FX6 with a stacked 16.6 MP Exmor RS CMOS sensor, internal X-OCN RAW 16-bit recording (first time in FX series), 3:2 Open Gate mode at 5K, triple base ISO (800/4000/12800) and CineAlta menus from BURANO/VENICE 2. Available from August 2026.
1. Technical Specifications and Initial Configuration
| Parameter | Specification |
|---|---|
| Sensor | Full-frame stacked Exmor RS CMOS (35mm, 16.6 MP) |
| Processor | BIONZ XR2 + dedicated AI unit |
| Base ISO | 800 / 4000 / 12800 (triple native base) |
| Dynamic range | 15+ stops (S-Log3) |
| Open Gate | 5K 3:2 (4992 × 3328 px) — X-OCN only |
| Frame rates | 5K 60p / 4K 120p / FHD 240p |
| Internal codecs | X-OCN (LT/C1/C2) 16-bit; XAVC HS/S 10-bit |
| IBIS | 5-axis + Dynamic Active Mode |
| Media | 2× CFexpress Type A / SDXC UHS-I/II |
| Audio (XLR-H2) | 4 channels / 96 kHz / 32-bit float |
| Weight / Price | 643 g (body only) / £4,800 body |
Step-by-Step Initial Configuration Tutorial
Recommended initial configuration protocol:
- Gamma: S-Log3 default (maximum 15+ stops latitude)
- Gamut: S-Gamut3.Cine (DCI-P3 compatibility)
- Base ISO: ISO 800 daylight; ISO 4000 interiors; ISO 12800 extreme low light
- Codec: X-OCN C1 quality/size balance (VPG400 required)
- Zebra: 95 IRE S-Log3 highlight protection
- Timecode: Free Run for multi-camera synchronisation
2. X-OCN RAW System and Open Gate 5K
X-OCN RAW Tutorial: Configuration and Variants
The FX5 is the first FX camera with internal X-OCN RAW 16-bit scene-linear recording. Until now, FX3/FX6 required external recorders. X-OCN allows non-destructive adjustments of exposure, white balance and colour directly in post.
| X-OCN Variant | Compression | Recommended Use |
|---|---|---|
| X-OCN LT | ~4:1 | Maximum quality, high-end production, BURANO standard |
| X-OCN C1 | ~8:1 | Quality/size balance, standard professional workflow |
| X-OCN C2 | ~16:1 | Agile workflows, reduced storage, long documentaries |
Configure Open Gate 5K: Practical Guide
Open Gate mode reads the complete sensor surface (4992 × 3328 pixels, 3:2). First mode of this type in FX series. Available exclusively with X-OCN in launch firmware.
Open Gate 5K Advantages:
- Post reframing: 4K extraction from 5K without resolution loss
- Anamorphic: Desqueeze support 1.3× / 1.5× / 1.6× / 1.8× / 2.0×
- Vertical production: Firmware v2.0 (2027+) will enable vertical format
- VENICE matching: B-cam for Sony large sensors
3. Triple Base ISO and S-Log3 Exposure
Triple Base ISO System: 800, 4000, 12800
The FX5 incorporates three native base ISOs (hardware analogue amplification, not digital gain). ISO 4000 is exclusive to the FX5 — non-existent in FX3/FX6 which work with 800/12800 — representing the ideal balance for mixed-light interiors.
| Base ISO | Professional Application |
|---|---|
| ISO 800 | Daylight exteriors, controlled studio, maximum quality, minimal noise |
| ISO 4000 | Mixed interiors, documentaries, events without additional light, cinematic texture |
| ISO 12800 | Extreme low light, night, dark interiors, structured filmic grain |
S-Log3 Configuration: IRE Table and Correct Exposure
| Element | S-Log3 Target IRE |
|---|---|
| Caucasian middle skin tone | 55-60 IRE (±3 IRE tolerance) |
| Global middle skin tones | 50-55 IRE (±3 IRE tolerance) |
| 18% middle grey | 41 IRE (exact calibration) |
| S-Log3 absolute black | 3-5 IRE (do not clip below 3 IRE) |
| 90% diffuse white | 90-94 IRE (limit before clip) |
| Recommended zebra | 95 IRE (highlight protection) |
? Exposure tutorial: Activate False Colour, verify skin in green/yellow zone (55-60 IRE), confirm with Waveform that distribution does not exceed 95 IRE in highlights. Need to configure your FX5? Check our technical consultancy service →
4. Sony FX5 vs FX6 vs FX3 Comparison
| Feature | FX5 | FX6 | FX3 |
|---|---|---|---|
| Base ISO | 800 / 4000 / 12800 | 800 / 12800 | 800 / 12800 |
| Internal 16-bit RAW | Yes (X-OCN) | No (ext. SDI) | No (ext. HDMI) |
| Open Gate 3:2 | Yes (5K X-OCN) | No | No |
| Internal ND | No | Yes (1/4–1/128) | No |
| SDI | No | 12G-SDI | No |
| Max. audio | 32-bit float | 24-bit | 24-bit |
| Weight / Price | 643 g / £4,800 | 890 g / ~£6,200 | 630 g / ~£3,600 |
Choose FX5 when:
- Internal 16-bit RAW is a requirement without external recorder
- Working with anamorphic optics requires Open Gate 3:2
- Reduced weight is priority for prolonged handheld/gimbal work
- SDI or internal ND not required (using mattebox/external filters)
Choose FX6 when:
- Variable light exteriors require internal variable ND
- SDI output necessary for broadcast mixers
- Box ergonomics preferred for shoulder operation
5. Professional Workflows
Documentary Workflow (Single-Op Run-and-Gun)
Recommended configuration:
- Codec: X-OCN C1 quality/size balance
- Resolution: 4K UHD 24p/25p
- ISO: Auto-switch 800/4000/12800
- Audio: XLR-H2 with 32-bit float (eliminates clipping)
- IBIS: Dynamic Active Mode
- Cards: 2× CFexpress 160GB VPG400
FX5 advantage: 750g total weight allows prolonged handheld operation. X-OCN allows ±2 stops recovery in post.
? Need this complete kit for your production? Check customised packages →
Narrative Fiction Maximum Quality Workflow
Maximum quality configuration:
- Codec: X-OCN LT (uncompressed)
- Resolution: Open Gate 5K 24p
- ISO: 800 fixed + Dual Gain activated
- Monitoring: 7" external monitor via HDMI
- Pipeline: Ingest X-OCN → DaVinci Resolve → Open Gate DCI 4K conform → Grading → DCI P3
6. Troubleshooting and FAQs
Common Problems and Solutions
"Media Not Guaranteed" Message:
Cause: CFexpress card does not meet VPG400 for X-OCN LT/C1 at 5K.
Solution: Use VPG400-certified cards (Sony CEA-G / ProGrade Digital) or switch to X-OCN C2 / XAVC.
Dual Gain Not Available at 60p:
Cause: Technical limitation at 30p in Open Gate.
Solution: Reduce to 30p if Dual Gain is priority, or use base ISO only if 60p required.
Difference X-OCN LT, C1, C2:
16-bit RAW compression level: LT (~4:1), C1 (~8:1), C2 (~16:1). C1 offers best balance for most productions.
? Sony FX5 Available at Camaleón Rental
Camaleón Rental has the complete Sony FX5 with professional accessories (OLED DVF-EL1 viewfinder, XLR-H2 handle, VPG400 CFexpress cards, NP-SA100 batteries) in Madrid, Barcelona, Lisbon and coverage across Spain/Portugal. We configure your kit according to your production's specific needs (cinema optics, lighting, grip, monitors, DIT support).
Check Availability and Prices →
Phone +34 913 40 78 97 | ✉️ hello@camaleonrental.com
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