The FX3A's 12.1MP Exmor R BSI CMOS sensor (10.2MP effective in video mode) is paired with a BIONZ XR processor to achieve UHD 4K video capture with internal 10-bit 4:2:2 sampling or 16-bit raw output. The sensor's BSI design heightens clarity and sensitivity, with an expandable ISO 80-409,600 range and a greater-than-15-stop dynamic range for working in mixed lighting conditions. Benefiting color and tonal control, the S-Cinetone mode can be used for matching to VENICE, FX9, or FX6 sources, and there is also S-Log3/2 gamut support and 10-bit HLG for simple HDR productions. The sensor and processor also work together to greatly reduce rolling shutter, and the sensor's design incorporates a Fast Hybrid AF system for intelligent and quick focusing performance and subject tracking.

Capture sharp, detailed images at rates up to 4K 120p with up to 5x slow motion at 24p output. Recording options include the ability to output DCI 4K+ in 16-bit raw over HDMI to compatible recorders while simultaneously recording XAVC 4K and proxies in-camera. Internal 4K recording options include 4:2:2 10-bit color with All-Intra and Long GOP codecs.

 

• Cooling features like a silent fan and a heatsink dissipate warmth to enable uninterrupted recording up to 4K60
• Dual SD card slots accept both CFexpress Type A and SDXC cards for easy relay or backup recording
• Super 35 1080p capture at rates up to 240p

The FX3A's cage-free design enables you to mount ¼"-20 compatible accessories directly on the camera or the detachable handle, saving you the weight and setup/breakdown time of a camera cage. The clustered record button, focus and menu controls, and six assignable buttons all help to enable single-handed control, leaving your left hand free for balancing or controlling your lens.

Pro audio recording options include:

 

• A detachable XLR adapter handle with two XLR-1/4" TRS combo audio inputs
• A mic holder and a 3.5mm input for adding a microphone
• Up to 4-channel, 24-bit audio recording

The FX3A updates the Cinema Line with improvements like comfortable, cage-free handheld operation, a battery runtime 1.6x longer than that of the a7S II, and a USB-PD power option for extended shooting times.

Attributes that the FX3A shares with the a7S III include:

 

• 5-axis in-body image stabilization
• 16-bit raw output via HDMI
• S-Log2 gamma choice
• 80 to 409,600 ISO range (expanded)