Sony

FX6

A compact full-frame cinema camera, the Sony FX6 is designed for run-and-gun documentary, corporate, and event production. It features a 10.2MP Exmor R sensor, delivering exceptional low-light performance and over 15 stops of dynamic range. Its standout feature is the electronic variable ND filter, offering seamless exposure control in changing light conditions.

Shop on Amazon ↗

Spec fields 18 Comparisons 7

Technical specifications

Sensor
Full-Frame CMOS
Sensor Size
35.6 x 23.8 mm
Megapixels
10.2
Mount
Sony E
Max Resolution
4K DCI (4096x2160)
Max Frame Rate
240fps @ 1080p
Codec
XAVC
Dynamic Range
15 Stops
ISO Range
ISO 3–409600
Log / Gamma
HDR-HLG, Rec709, S Cinetone, Sony S-Log 3, Standard
Autofocus
Phase-detect, 627 points
Stabilization
Supplies Stabilization Metadata
ND Filter
2–7 stop (variable)
Ports
1x BNC (12G-SDI), 1x HDMI 2.0, 2x XLR 3-Pin Mic/Line Input on Included Handle (+48 V Phantom Power), 1x 1/8" / 3.5 mm TRS, 1x Barrel (19.5VDC), 1x USB-C (USB 3.2 / 3.1 Gen 1), 1x Sony Multi/Micro-USB Data, 1x BNC (Timecode), 1x 2.5 mm Sub-Mini Control, 1x 1/8" / 3.5 mm Control, 1x Proprietary
Battery
Sony BP-U Series
Weight
890g
Dimensions
152.9 x 116.1 x 114 mm
MSRP
$5,999

Add your voice

Your ratings help other filmmakers choose the right camera.

Field guide

Overview

The Sony FX6 is a powerhouse in the compact cinema camera market, designed to bridge the gap between the mirrorless Alpha series and the high-end Venice line. It is a purpose-built tool for cinematographers and documentary filmmakers who need a full-frame sensor in a modular, lightweight body. Competing directly with cameras like the Canon C70 or Blackmagic Pocket Cinema Camera 6K Pro, the FX6 stands out by offering a robust E-mount system, internal variable ND filters, and a high-sensitivity sensor that excels in low-light environments.

What makes the FX6 truly compelling is its dual-base ISO capability and the inclusion of professional-grade features like internal 10-bit 4:2:2 recording, S-Cinetone, and Cine EI mode. The manual highlights its versatility, allowing users to switch between a flexible Custom mode for quick turnarounds and a more controlled Cine EI workflow for high-end post-production. The modular design, featuring a detachable handle and grip, makes it highly adaptable for everything from handheld run-and-gun work to rigged-out studio setups.

This camera is an ideal choice for solo operators, documentary crews, and corporate videographers who require reliable, high-quality imagery without the bulk of a traditional cinema camera. Its ability to handle diverse shooting conditions—from bright exteriors using the variable ND to dim interiors using its high-base ISO—makes it a workhorse for any production.

Pros & Cons

Pros

  • Internal variable ND filter (1/4 to 1/128) allows for precise exposure control without changing lenses or stacking filters — essential for maintaining a consistent depth of field in changing light.

  • Full-frame sensor with dual-base ISO (800/12800 in Cine EI) provides exceptional low-light performance, reducing the need for heavy lighting setups.

  • Modular design with a detachable handle and grip remote control allows for quick transitions between handheld, gimbal, and tripod configurations.

  • Advanced autofocus system with face/eye detection AF provides reliable tracking, even when shooting at wide apertures on full-frame lenses.

  • Dual CFexpress Type A/SD card slots support relay and simultaneous recording, ensuring data redundancy and extended recording times.

Cons

  • 4K120fps recording is limited by a sensor crop, which changes your effective field of view and requires careful lens planning.

  • The camera lacks internal image stabilization, relying on compatible E-mount lenses for active stabilization, which may limit lens choices for handheld work.

  • The menu system is deep and complex; while powerful, it can be overwhelming for users transitioning from simpler mirrorless cameras.

  • The proprietary battery system (BP-U series) is more expensive and less universal than standard V-mount or NP-F batteries.

  • The camera does not support internal RAW recording; it requires an external recorder via the SDI output, adding bulk and cost to the rig.

Best Settings

Narrative Filmmaking

  • Shooting Mode: Cine EI
  • Base ISO: 800 (or 12800 for low light)
  • Codec: XAVC-I
  • Color Gamut: S-Gamut3.Cine/SLog3
  • Why: Cine EI provides the most latitude for color grading in post-production, ensuring you capture the maximum dynamic range.

Documentary / Run-and-Gun

  • Shooting Mode: Custom
  • Base Look: S-Cinetone
  • ND Filter: Variable (Auto)
  • Focus: AF with Face/Eye Detection
  • Why: S-Cinetone provides a cinematic look straight out of the camera, and Auto Variable ND allows you to maintain exposure while moving between different lighting environments.

Interview & Talking Head

  • Shooting Mode: Custom
  • Base Look: Standard or S-Cinetone
  • Audio: Manual levels on CH1/CH2 using XLR inputs
  • Why: Manual audio control is critical for consistent levels, and a standard look ensures accurate skin tones without heavy grading.

Slow Motion

  • Shooting Mode: Custom
  • Frame Rate: 120fps (XAVC-I)
  • Note: Be aware that high frame rates may disable certain autofocus features or Clear Image Zoom depending on the specific resolution and codec settings.

Common Issues

Recording Fails to Start

  • What's happening: Pressing the record button does not trigger recording.
  • Why: The memory card may be full, or it requires restoration.
  • Fix: Check the remaining capacity on the status screen. If the card needs restoration, follow the prompt in the viewfinder or use the TC/Media menu to restore it.
  • Prevention: Regularly check media capacity and format cards before important shoots.

Distorted Audio

  • What's happening: Recorded audio sounds clipped or distorted.
  • Why: The input levels are set too high.
  • Fix: Adjust the audio levels using the physical dials on the side of the camera or the XLR adaptor.
  • Prevention: Monitor audio levels using the on-screen meters and set the limiter mode in the Audio menu.

Camera Won't Power On

  • What's happening: The camera fails to turn on when the power switch is toggled.
  • Why: The battery may be completely exhausted or not properly seated.
  • Fix: Ensure the battery is locked into the attachment. If exhausted, charge it using the supplied BC-CU1 charger.
  • Prevention: Always carry a spare, fully charged battery.

ND Filter Won't Move

  • What's happening: The internal ND filter is stuck.
  • Why: Mechanical obstruction or error.
  • Fix: Use the manual override procedure: remove the round cap on the bottom, insert a small screwdriver, and turn counterclockwise to move the filter to the Clear position.
  • Prevention: Do not force the ND filter during normal operation; only use the manual override in emergencies.

FAQ

Can the Sony FX6 shoot 4K at 120fps?

Yes, the Sony FX6 can record 4K at up to 120fps. However, note that this mode may involve a sensor crop and specific codec limitations as outlined in the manual.

What memory cards does the Sony FX6 use?

The Sony FX6 uses dual slots that accept either CFexpress Type A cards or SDXC memory cards. For high-bitrate recording, CFexpress Type A cards are recommended.

Does the Sony FX6 have built-in ND filters?

Yes, the Sony FX6 features an internal variable ND filter system. It can be set to preset values or adjusted continuously in variable mode.

Can I record RAW video on the Sony FX6?

Yes, but only to an external recorder. The Sony FX6 outputs a RAW signal via the SDI connector, which must be captured by a compatible external RAW recorder.

What is the base ISO of the Sony FX6?

In Cine EI mode, the Sony FX6 has a dual-base ISO of 800 and 12800. This allows for excellent performance in both bright and low-light conditions.

Is the Sony FX6 weather-sealed?

The manual does not explicitly claim weather sealing. It does, however, provide specific usage and storage precautions regarding dust and damp locations.

Can I use A-mount lenses on the Sony FX6?

Yes, you can use A-mount lenses by attaching a lens mount adaptor (sold separately). Note that some autofocus and iris features may be limited.

How do I update the firmware on the Sony FX6?

The manual mentions updating E-mount lens software via the camera's mass storage mode. For general camera firmware, follow the specific instructions provided with the update file.

Recommended Accessories

See all accessories for FX6 →

Related comparisons

Data refreshed: 2/26/2026