Sony ILCE-7M4KB.CEC Alpha a7IV Full-Frame Mirrorless Digital Camera with 28-70mm Lens

Sony Alpha 7 IV | Full-Frame Mirrorless Camera ( 33MP, Real-time autofocus, 10 fps, 4K60p, Vari-angle touch screen, Large capacity Z battery )

Mirrorless Digital Camera with 28-70mm Lens

• 33MP Full-Frame Exmor R CMOS Sensor
• Up to 10 fps Shooting, ISO 100-51200
• 4K 60p Video in 10-Bit, S-Cinetone
• 3.68m-Dot EVF with 120 fps Refresh Rate
• 3" 1.03m-Dot Vari-Angle Touchscreen LCD
• 759-Pt. Fast Hybrid AF, Real-time Eye AF
• Focus Breathing Compensation
• 5-Axis SteadyShot Image Stabilization
• Creative Looks and Soft Skin Effect
• FE 28-70mm f/3.5-5.6 OSS Lens

An all-arounder that pushes beyond basic, the Sony Alpha a7 IV does double duty with strong stills and video performance. An advanced hybrid mirrorless camera, the a7 IV has the resolution and AF performance that appeals to photographers along with robust 4K 60p video recording for filmmakers and content creators.

The newly developed 33MP Exmor R CMOS sensor pairs with the BIONZ XR processor from the Alpha 1 to achieve quick shooting up to 10 fps and 4K 60p video recording, along with broad sensitivity up to ISO 51200 and a wide 15+ stop dynamic range. Beyond image quality, the sensor and processor also contribute to an advanced AI-based AF system that supports Real-time Eye AF and Real-time Tracking for intuitive AF control and subject tracking.

This fourth-generation of the a7 camera also sports an updated body design that houses a higher resolution 3.68m-dot EVF, vari-angle touchscreen LCD, and dual memory card slots, including one dual CFexpress Type A/SD UHS-II slot. Connectivity and streaming are also a key attribute of this camera, and it supports a simple plug-and-play design for live streaming directly from the camera when connected to a computer via USB.

Sensor and Processor

33MP Exmor R BSI CMOS Sensor

Newly developed 33MP Exmor R full-frame sensor features a back-illuminated design that promotes high clarity, low noise, and vivid color rendering. This design benefits working in low-light conditions and works in conjunction with a broad sensitivity range of ISO 100-51200. The sensor's design also achieves an impressive dynamic range of approximately 15 stops and files can be recorded in raw, JPEG, or the 10-bit HEIF format.

BIONZ XR Processor

Using the flagship-class BIONZ XR engine, high-speed image processing capabilities are available for fast continuous shooting, 4K video recording, and advanced AF tracking performance. The quick processing also helps to reduce rolling shutter and other motion distortions for clean rendering of moving subjects.

In terms of shooting speeds, the sensor and processor enable up to 10 fps shooting, using either the mechanical or electronic shutter and with AF/AE enabled. Also, the buffer permits recording up to 828 consecutive uncompressed raw + JPEG frames when using a CFexpress Type A card.

Advanced External Flash Control

Suiting working with flash while photographing fast-moving subjects, P-TTL flash metering is possible in between each exposure when working with lo, mid, or even hi-speed continuous shooting modes. This helps to maintain stable illumination if making low-light bursts and greatly benefits working in changing light or low-light conditions. The updated flash control system also helps to reduce flash trigger lag, uses the camera's AWB information for natural color rendering, and supports adjusting select flash and transmitter units directly from the camera's interface.

Video Recording

4K 60p Video Recording in 10-Bit

Making full use of the high-resolution 33MP sensor and fast processing capabilities, UHD 4K 30p XAVC HS 10-bit recording is possible using the full width of the sensor, offering 7K oversampling for impressive sharpness and realism.

There is also oversampled 4K recording, via a 4.6K capture area, with a Super 35 crop, that offers UHD 4K output up to 60p in 10-bit.

No recording time limit allows for unlimited clip lengths and the camera's physical design features an improved heat-dissipating structure to promote longer possible recording times; longer than one hour of continuous 4K 60p 10-bit 4:2:2 recording, for example.

The a7 IV employs a pair of codecs to suit different workflows: XAVC HS, which uses HEVC/H.265 encoding to retain more detail at smaller bitrates and XAVC S-I, which is an intraframe codec for consistent performance and quality at bitrates up to 600 Mb/s.

Technical Detail

Imaging

Lens Mount Sony E

Sensor Type 35.9 x 23.9 mm (Full-Frame) CMOS

Sensor Resolution Actual: 34.1 Megapixel

Effective: 33 Megapixel

Crop Factor None

Aspect Ratio 1:1, 3:2, 4:3, 16:9

Image File Format JPEG, Raw, HEIF

Bit Depth 14-Bit

Image Stabilization Sensor-Shift, 5-Axis

Exposure Control

ISO Sensitivity Auto, 100 to 512000 (Extended: 50 to 204800)

Shutter Speed 1/8000 to 30 Second

Bulb Mode

Metering Method Center-Weighted Average, Highlight Weighted, Multiple, Spot

Exposure Modes Aperture Priority, Manual, Program, Shutter Priority

Exposure Compensation -5 to +5 EV (1/3 EV Steps)

Metering Range -3 to 20 EV

White Balance Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater

Continuous Shooting Up to 10 fps at 33 MP for up to 828 Frames (Raw) / Unlimited Frames (JPEG)

Interval Recording Yes

Self-Timer 2/5/10-Second Delay

Video

Recording Modes H.265/XAVC HS 4:2:2 10-Bit

UHD 4K (3840 x 2160) at 23.976p/50p/59.94p [50 to 200 Mb/s]

H.265/XAVC HS 4:2:0 10-Bit

UHD 4K (3840 x 2160) at 23.976p/50p/59.94p [30 to 150 Mb/s]

H.264/XAVC S-I 4:2:2 10-Bit

UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p [240 to 600 Mb/s]

Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p [89 to 222 Mb/s]

External Recording Modes 4:2:2 10-Bit

UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p

Full HD (1920 x 1080) at 23.976p/50p/59.94p

Full HD (1920 x 1080) at 50i/59.94i

4:2:0 8-Bit

UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p

Full HD (1920 x 1080) at 23.976p/50p/59.94p

Full HD (1920 x 1080) at 50i/59.94i

Recording Limit Unlimited

Video Encoding NTSC/PAL

Audio Recording Built-In Microphone (Stereo)

External Microphone Input (Stereo)

Audio File Format AAC, Linear PCM (Stereo)

Live Streaming Yes

Webcam Functionality Yes

Focus

Focus Type Auto and Manual Focus

Focus Mode Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S)

Autofocus Points Phase Detection: 759

Contrast Detection: 425

Autofocus Sensitivity -4 to +20 EV

Viewfinder

Viewfinder Type Electronic (OLED)

Viewfinder Size 0.5"

Viewfinder Resolution 3,680,000 Dot

Viewfinder Eye Point 23 mm

Viewfinder Coverage 100%

Viewfinder Magnification Approx. 0.78x

Diopter Adjustment -4 to +3

Monitor

Size 3.0"

Resolution 1,036,800 Dot

Display Type Free-Angle Tilting Touchscreen LCD

Flash

Built-In Flash No

Flash Modes Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync

Maximum Sync Speed 1/250 Second

Flash Compensation -3 to +3 EV (1/3, 1/2 EV Steps)

Dedicated Flash System TTL

External Flash Connection Hot Shoe

Interface

Media/Memory Card Slot Slot 1: Cfexpress Type A / SD (UHS-II)

Slot 1: SD/SDHC/SDXC (UHS-II)

Connectivity HDMI A (Full Size), USB Type-C (USB 3.2 Gen 2), USB Micro-B (USB 2.0), 3.5mm Microphone, 3.5mm Headphone

Wireless Wi-Fi

Bluetooth

GPS No