Sony A7S III

Our thoughts

"The Sony Alpha a7S III is the filmmaker’s workhorse — a camera that thrives in low light, captures flawless 4K at high frame rates, and stays reliable during long shoots. It’s built for creators who value clean footage, smooth workflow, and dependable autofocus more than sheer megapixels. Whether you’re shooting a documentary, short film, or event coverage, it’s one of the most versatile video-oriented full-frame cameras on the market."

- Will, Founder

Product description

Rent a Sony Alpha a7S III for professional-grade video capture with outstanding low-light performance. Designed for filmmakers and hybrid creators, this full-frame mirrorless camera combines a 12.1MP back-illuminated Exmor sensor with Sony’s powerful BIONZ XR processor, delivering superior noise control, dynamic range, and colour fidelity.

The Sony a7S III records UHD 4K video at up to 120p with full pixel readout and no crop, offering 10-bit 4:2:2 internal recording and 16-bit RAW output via HDMI. You’ll get S-Log3, S-Cinetone, and Hybrid Log-Gamma profiles for cinematic tone reproduction and up to 15+ stops of dynamic range. With 5-axis in-body stabilisation, dual CFexpress Type A / SD card slots, and a high-resolution QXGA OLED EVF, the a7S III is a compact powerhouse optimised for professional video production.

What’s changed?

The Sony a7S III builds on the a7S II with a redesigned sensor and processor for massive gains in performance, speed, and flexibility. It now records 4K 120p internally in 10-bit 4:2:2, with no recording limits, and supports both the efficient XAVC HS codec (H.265) and the high-quality intraframe XAVC S-I codec up to 600 Mb/s.

The new BIONZ XR processor delivers up to 8x faster performance with reduced rolling shutter and greater tonal latitude. Autofocus is vastly improved with 759 phase-detection points and AI-based Real-Time Eye AF for both humans and animals. The new vari-angle touchscreen and 9.44M-dot OLED viewfinder dramatically enhance usability, while improved heat management ensures stable long-form recording sessions even at high frame rates.

Key features

• 12.1MP back-illuminated Exmor CMOS sensor with 15+ stops of dynamic range

• 4K 120p / 60p / 24p recording with full pixel readout and no crop

• 10-bit 4:2:2 internal recording and 16-bit RAW output over HDMI

• 5-axis in-body image stabilisation with Active IS video mode

• 759-point Fast Hybrid AF covering 92% of the image area

• S-Log2, S-Log3, S-Cinetone, and HLG profiles for cinematic colour

• Dual CFexpress Type A / SD UHS-II slots for flexible recording options

• QXGA OLED 9.44M-dot EVF and 3.0" vari-angle touchscreen LCD

Performance & operation

The a7S III’s 12.1MP sensor is purpose-built for low-light performance and video production. Its ISO range of 80–102,400 (expandable to 40–409,600) maintains clarity even in near darkness. The new image processor offers exceptional dynamic range, accurate colour science, and faster readout for reduced rolling shutter distortion.

Autofocus tracking is quick, smooth, and precise — perfect for solo operators and run-and-gun filmmakers. Real-Time Eye AF and subject tracking ensure sharp focus even at shallow depth of field, while touch tracking adds intuitive control during shoots. The camera’s 5.5-stop stabilisation system and Active IS mode help deliver smooth handheld footage, making gimbals optional in many setups.

Professionals will appreciate the full-size HDMI port for external 16-bit RAW output, improved heat dissipation for unlimited recording, and support for All-I, Long-GOP, and HEVC codecs. Combined with robust battery life and an ergonomic, weather-sealed body, the a7S III is built to perform under pressure on any set.

Why rent the Sony Alpha a7S III?

The Sony Alpha a7S III is a video-centric hybrid camera tailored for professionals who demand cinematic image quality, flexibility, and reliability. It’s ideal for documentaries, weddings, music videos, and commercial shoots where low-light capability and long-recording stability are critical.

With fast codecs, 4K 120p recording, class-leading autofocus, and dependable ergonomics, it stands as one of the most complete video tools available in the mirrorless world. If you need a camera that delivers cinematic footage straight out of camera and adapts effortlessly to any production workflow, the a7S III is the one to rent.

Rent a Sony Alpha a7S III from Canada Camera Rentals and experience world-class video performance, reliability, and image quality in a full-frame body built for creators.