Key Features
12.1MP Full-Frame CMOS Exmor R Sensor
UHD 4K up to 120p | 1080p up to 240p
Compact Form for Cage-Free Operation
10-Bit 4:2:2 XAVC S-I, 16-Bit RAW Output
S-Cinetone / S-Log3 / HLG, 15+ Stops Dynamic Range
Detachable Dual XLR/TRS Adapter Handle
Phase Detection AF / Face Tracking / Eye AF
Expanded ISO Range from 80 to 409,600
Dual CFexpress Type A / SDXC Card Slots

Cinematic Capture in a Compact, Streamlined Form

With a compact design tailored for solo shooters, travel productions, or use as an ideal B camera, the Sony FX3A blends technologies from the Cinema Line and Alpha series to create a highly optimized portable cinema camera.

The FX3A includes all the imaging capabilities expected from this class of camera while introducing a lightweight handheld design with a streamlined profile and a cage-free body, allowing accessories to be mounted directly onto the camera.

Firmware Update v2.00

Firmware update v2.00 introduces multiple improvements, including:

• BIG6 home screen for quick review of shooting settings and configurations
• 1.5x and 1.6x De-Squeeze Display magnification
• Support for Focus Magnifier and Auto Magnifier in MF settings while using Bright Monitoring
• RAW video output via HDMI enabling Blackmagic RAW recording
• Automatic recognition of a USB-LAN conversion adapter
• Image filtering for smartphone and FTP transfers
• Recording ND filter optical density metadata

Expressive UHD 4K Video Capture

The FX3A’s 12.1MP Exmor R BSI CMOS sensor (10.2MP effective in video mode) paired with the BIONZ XR processor enables UHD 4K video recording with internal 10-bit 4:2:2 sampling or 16-bit RAW output.

The sensor’s back-illuminated structure improves sensitivity and clarity, offering an expanded ISO range of 80–409,600 and 15+ stops of dynamic range, ideal for mixed lighting environments.

The S-Cinetone color profile allows seamless color matching with VENICE, FX9, and FX6 cameras, while support for S-Log3, S-Log2, S-Gamut3, S-Gamut3.Cine, and 10-bit HLG HDR enables flexible color grading and HDR workflows.

The sensor and processor combination also reduces rolling shutter, while Fast Hybrid AF ensures quick and intelligent subject tracking.

Full-Frame Exmor R CMOS Sensor

The 12.1MP Exmor R full-frame sensor combined with the BIONZ XR processor delivers cinematic imagery with 10.2MP effective resolution for video and 12.1MP for stills.

The full-frame design provides:

• shallow depth of field
• cinematic bokeh
• reduced rolling shutter artifacts

The native ISO range of 80–102,400, expandable to 409,600, enables exceptional low-light performance.

With 15+ stops of dynamic range, the camera captures detail in both bright highlights and deep shadows, providing flexibility for color grading.

S-Cinetone Color

The S-Cinetone color profile, the default setting on the FX3A, produces:

• natural skin tones
• soft cinematic color rendering
• seamless matching with VENICE, FX9, and FX6 footage

Support for S-Log3, S-Gamut3, S-Gamut3.Cine, and 10-bit 4:2:2 recording preserves smooth tonal gradations across Sony’s Cinema Line ecosystem.

The HLG HDR mode allows HDR playback without requiring color grading.

Video Recording

The FX3A captures highly detailed footage at:

• 4K up to 120p
• HD up to 240p
• up to 5x slow motion at 24p output

Additional recording options include:

• 16-bit RAW HDMI output to external recorders
• simultaneous recording of XAVC 4K and proxy files

Internal recording supports 4:2:2 10-bit color using All-Intra and Long GOP codecs.

A silent cooling fan and internal heat sink allow continuous recording up to 4K60 without overheating.

Dual card slots support CFexpress Type A and SDXC cards for relay or backup recording.

Reliable Autofocus Performance

With Real-time Tracking and Eye AF, even solo operators can maintain accurate focus on moving subjects.

Key AF features include:

• AI-based subject tracking
• touchscreen focus control
• 627 phase-detection AF points covering approximately 89% of the frame

Additional customization includes:

• 7 AF transition speed settings
• 5 subject shift sensitivity options

Ergonomic Design for Solo Operation

The cage-free body design allows ¼”-20 accessories to mount directly to the camera or detachable handle.

Key control features include:

• centrally positioned record button
• focus and menu controls
• six assignable buttons

This layout enables one-handed operation, leaving the other hand free to stabilize the camera or adjust the lens.

Tilting Touchscreen LCD

The fold-out 3-inch touchscreen LCD features 2.35MP resolution and adjustable viewing angles for flexible monitoring.

Tally Lights

Front, top, and rear tally indicators clearly signal when recording is active, improving coordination between operator, talent, and sound crew.

Professional Audio Capabilities

Professional audio recording options include:

• detachable handle with dual XLR/TRS combo inputs
• integrated microphone holder
• 3.5mm microphone input
• 4-channel 24-bit audio recording

Remote Control, Streaming, and File Transfers

The FX3A can be remotely controlled using:

• Imaging Edge Mobile
• Imaging Edge Desktop

File transfer options include:

• Wi-Fi connectivity
• USB-C wired connection

The camera can also be used for streaming through a computer via the Imaging Edge Webcam application.

Post-Production Stabilization

Sony’s Catalyst Prepare/Browse software uses embedded motion metadata to stabilize footage during post-production.

Users can balance:

• shake compensation
• image cropping

FX3A Improvements

The FX3A introduces several enhancements, including:

• comfortable cage-free handheld operation
• battery runtime 1.6× longer than the Sony a7S II
• USB Power Delivery (USB-PD) for extended shooting sessions

Shared Features with FX6 and a7S III

The FX3A shares multiple technologies with other Sony cameras:

Shared with FX6 and a7S III

• Full-frame 12.1MP Exmor R CMOS sensor
• BIONZ XR processor
• 4K 120p and HD 240p recording
• 15+ stops of dynamic range

Shared with FX6

• S-Cinetone, S-Log3, HLG, and Rec.709 gamma profiles
• tally lights
• internal cooling fan
• zoom lever

Shared with a7S III

• 5-axis in-body image stabilization
• 16-bit RAW HDMI output
• S-Log2 gamma
• expanded ISO up to 409,600

Wireless Connectivity

• Dual-band 2.4 / 5 GHz Wi-Fi
• Wired LAN connection via USB-C adapter
• High-speed wireless file transfer and remote camera control.