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Sony - Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera with SEL2870 Lens - Black

Model: ILCE7M4K/B
SKU: 6486185
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Specifications
  • Image Sensor Size
    35mm Full Frame (36 x 24 mm)
    Effective Pixels
    33 megapixels
    Standardized Video Resolution
    4K (2160p)
  • Key Specs
    • Image Sensor Size: 35mm Full Frame (36 x 24 mm)
    • Effective Pixels: 33 megapixels (The actual number of pixels which make up the viewable image.)
    • Standardized Video Resolution: 4K (2160p) (An approximated measurement of the product’s video resolution. This may not be the exact resolution of the product, which may be slightly more or less when using a pixel-by-pixel measurement.)
  • General
    • Brand: Sony
    • Model Number: ILCE7M4K/B
    • Product Name: Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera with SEL2870 Lens
    • Color: Black
    • Product Set: w/ 28-70mm Lens
    • Camera Model Family: Sony a7 IV
    • Digital Camera Type: Mirrorless Camera with Lens
  • Imaging
    • Image Sensor Type: CMOS (CCD and CMOS are the two main technologies used in image sensors. CCD, the older of the two types, turns analog light signals into digital pixels. This conversion happens without distortion, resulting in high-quality images. Newer CMOS sensors use transistors at each pixel to move electrical charges. CMOS sensors are typically less expensive, but also require more light to create distortion-free images.)
    • Image Sensor Size: 35mm Full Frame (36 x 24 mm)
    • Total Pixels: 34 megapixels (Generally, the more pixels, the higher the image resolution and the finer the detail that can be seen.)
    • Image Resolution (Display): 3840 x 2160 (Refers to the number of pixels, both horizontally and vertically, used to either capture an image or display it. The higher the resolution the finer the image details.)
    • Zoom Capability: true (This function allows for magnification of the subject.)
    • Digital Zoom: 8x (A digital zoom is accomplished electronically, with no adjustment of the camera's optics, and no optical resolution gained in the process. The existing data is not enhanced or added to, merely displayed at a lower resolution, thereby giving an illusion of an enlarged image.)
    • In-Camera Image Stabilization: true (This feature helps reduce image blurring from camera motion. In-camera stabilization means the image sensor itself moves to counteract detected motion.)
    • Low Light/High Sensitivity: true (High sensitivity digital imaging devices are designed to work in low light conditions to produce a high dynamic range image.)
    • Image File Format(s): JPEG, RAW (Standardized software format(s) of storing digital images. The type of format chosen for capturing and compressing the image can determine quality, level of detail, and storage space required.)
  • Focus
    • Autofocus: true (Allows the camera to automatically focus through the lens, rather than by adjusting the lens manually.)
    • Eye Autofocus (Eye AF): true (Automatically seeks out and focuses on the subject's eye and holds it as the camera and subject move and as the photographer shoots at high frame rates.)
  • Exposure Control
    • Shutter Speeds: 1/8000 (The length of time the shutter remains open when the shutter release is activated, expressed in fractions of seconds. The longer the shutter is open, the more light that is able to be captured by the camera sensor.)
    • Minimum Aperture: f/22 (The smallest opening of a lens, typically expressed in f-numbers. The larger the number, the smaller the aperture and the less light that can enter the lens. A smaller aperture creates a larger depth of field, which keeps both foreground and background in focus.)
    • Maximum Aperture: f/5.6 (The limit to how wide a lens can be open, typically expressed in f-numbers. The smaller the number, the larger the aperture and the more light that can enter the lens. A larger aperture creates a shallower depth of field, helpful for keeping subjects in focus and blurring background details.)
    • Brightness Control: true (Allows the camera to adjust the brightness of a captured image for optimal exposure.)
    • Burst Mode: true (Also referred to as continuous shooting. This feature captures multiple shots in rapid succession.)
    • Burst Rate: 10 frames per second
    • Self Timer: true
    • Self-Timer Delay: 10 seconds, 5 seconds, 2 seconds
    • Shooting Modes: Auto, Programmed, Aperture, Shutter speed, Manual, Movie (Exposure modes employed by the photographer to control the optimal aperture, shutter speed, ISO, and other settings for capturing specific subjects/scenes. Examples include Aperture-Priority, Macro, and Manual modes.)
    • Panorama Mode: false
    • Scene Modes: Landscape, scenery (Exposure modes with predetermined optimal settings for capturing specific scenes. Examples include Landcape, Portrait, and Sports modes.)
    • White Balance Modes: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Underwater, Color filter, Custom (Settings that calibrates how the color white is rendered in an image/video, reducing the appearance of unnatural contrasts caused by various light sources.)
    • Effective Pixels: 33 megapixels (The actual number of pixels which make up the viewable image.)
  • Lens
    • Lens Mount Compatibility: Sony E-Mount, Sony E-Mount (Full-Frame)
    • Lens Type: Standard Zoom
    • Minimum Focal Length: 28 millimeters (The minimum distance between the lens and the image sensor that allows the subject to be in focus. The shorter the focal length, the greater the area of scene captured.)
    • Maximum Focal Length: 70 millimeters (The maximum distance between the lens and the image sensor that allows the subject to be in focus. The greater the focal length, the smaller the area of scene captured.)
    • In-Lens Image Stabilization: true (This feature helps reduce image blurring from camera motion. Lens stabilization means an element within the lens moves automatically to counteract detected motion.)
    • Lens Series: Sony E (The product group that the lens belongs to, based on similar shared features.)
    • Lens Model Number: SEL2870
  • Flash
    • Flash Modes: Off, Automatic, Fill-in, Slow sync, Rear curtain sync, Red-eye reduction, High-speed sync (The flash feature emits light to increase the brightness of a subject in dimly lit environments. Common modes include Auto and Red-Eye Reduction.)
    • Integrated Flash: true
    • External Flash Mount: Hot Shoe (A cold shoe is a mounting point on top of a camera to securely attach a flash unit or other compatible accessories. A hot shoe is a cold shoe with an electrical connection that insures communication and synchronization between camera and accessory.)
  • Display
    • Display Type: LCD
    • Screen Size: 3 inches (Size of the screen, measured diagonally from corner to corner.)
    • Screen Resolution: 3840 x 2160, 1920 x 1080, 1280 x 720 (Screens come in a range of resolutions (measured in pixels, horizontal x vertical). The higher the resolution, the greater the picture quality.)
    • Viewfinder Type: Electronic (A viewfinder is the part of a camera (or attachment) that allows you to see and focus a scene in frame. Optical viewfinders let you view the scene directly through the lens. Electronic viewfinders display the image on a screen in its approximate final form.)
    • Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
    • Varying Angle Screen: true (The camera's screen can be flipped out and adjusted to rotate, tilt, and/or swivel.)
  • Video
    • Standardized Video Resolution: 4K (2160p) (An approximated measurement of the product’s video resolution. This may not be the exact resolution of the product, which may be slightly more or less when using a pixel-by-pixel measurement.)
    • Video Resolution(s) and Frame Rate(s): 4K (2160p) video recording at 120 fps (Refers to the number of pixels, both horizontally and vertically, and the frame rate used to capture the video. The higher the resolution the finer the video detail that can be seen. The faster the frame rate the smoother the playback for higher motion activities like sports.)
    • Maximum Video Frame Rate: Up to 120 fps (The maximum frequency at which consecutive images can be captured by a video recording device.)
    • HDR Mode: true (HDR Mode uses multiple photos taken at different exposures to add more dynamic range to photographs. HDR technology displays content with greater contrast between bright and dark, resulting in clearer and more lifelike images.)
    • Slow Motion Recording: true
    • HD Movie Mode Focus: Manual
  • Storage
    • Number of Memory Card Slots: 2
  • Compatibility
    • Tripod/Monopod Mountable: true (A support function that allows the device to be mounted to monopods and tripods for leveling and stability.)
    • Memory Card Compatibility: Secure Digital Extended Capacity (SDXC), Secure Digital High Capacity (SDHC) (The type of memory card(s) recommended for use with the product.)
    • Remote Compatible: true
  • Features
    • Face Detection: true (A function that automatically detects human faces and then sets focus and appropriate exposure to capture them.)
    • Smile Mode: false (When enabled, this mode works in conjunction with face detection to automatically take a photo when a smile is detected.)
    • Integrated GPS: No
    • Records Audio: true
  • Connectivity
    • Wireless Connectivity: None (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
    • Output(s): USB, 3.5mm audio, HDMI, USB 2.0
    • Microphone Input: true (The device features an input for connecting an external microphone.)
    • Headphone Jack: true (The device features an interface that allows for the connection of headphones.)
    • PictBridge Enabled: false (PictBridge allows digital cameras, camcorders and other image capture devices to connect and print directly to photo printers and other output devices without using a computer.)
    • Charging Interface(s): USB-C (The connection for transmitting power to charge the device.)
  • Power
    • Rechargeable Battery: true
    • AC Adapter Compatible: true (The device is able to be charged using an external power adapter which meets input and output voltages specified by the manufacturer.)
    • Removable Battery: true
    • Battery Model: NP-FZ100 (The model number of the battery necessary for operation of the device.)
    • Number of Batteries Required: 1
    • Number of Images Per Charge: 520
  • Included
    • Number of Lenses Included: 1
    • Camera Bag/Case Included: false
    • Batteries Included: true (Indicates whether the product comes with the required batteries for its operation.)
    • AC Adapter Included: true (An external power adapter is included for operation.)
    • Memory Card Included: false (Indicates whether a memory card is included.)
  • Dimensions
    • Product Height: 6.6 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 5.25 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 3.87 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 2.1 pounds (The out of box weight of the item.)
    • Filter Diameter: 55 millimeters
    • Camera Body Weight: 1.45 pounds
  • Warranty
    • Warranty - Parts: 1 year
    • Warranty - Labor: 1 year
  • Other
    • UPC: 027242923584

Sony Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera - a true hybrid with 33MP Exmor R sensor, 8x faster BIONZ XR processor, up to 10 fps with continuous AF/AE tracking, 4K 60p and 15+ stops dynamic range

  • 33 megapixel high-resolution full-frame CMOS sensor: The full-frame 33MP Exmor R back-illuminated CMOS sensor delivers outstanding speed and image quality. The sensor provides improved color reproducibility, low-noise performance, 15 stop dynamic range and increased AF speed and performance
  • ISO 100-51,200 standard range; expandle to ISO 50-204,800 for stills and 100-102,400 for movies: Enhances shooting in varied and fast-changing lighting situations, including extremely low light; enables to capture beautiful images with reduced noise.
  • Never miss a shot with ultrafast 10 fps (frames per second): Mechanical and electronic shutters allow continuous shooting of 33 megapixels still images at up to 10 fps with AF/AE tracking.
  • Capture spectacular movies in HD: Thanks to the increase 33MP resolution, the Alpha 7 IV oversamples 7K when recording full-frame 4K movies at up to 30p, resulting in high-resolution, highly detailed 4K for beautifully expressive, rich images
  • Communication features for easy sharing and distribution: Equipped with robust wired and wireless communication features for more comfortable sharing and distribution; in-body wireless LAN uses 5GHz band in addition to 2.4GHz band for fast data transfer.
  • 3" vari-angle touch-screen LCD monitor: Features side-opening 3" 1.03-mega-dot touch-panel LCD monitor that offers ample brightness for clear viewing in outdoor settings; 3:2 aspect ratio makes efficient use of the display area.
  • BIONZ XR image processor for up to 8x processing speed: Provides up to an 8x increase in processing speed; engine concentrates real-time processing of autofocus, image recognition and image quality adjustment to minimize processing latency for greatly increased movie and still processing power.
  • High-definition Quad-VGA OLED viewfinder: Features a 3.68 mega-dot high-definition Quad-VGA OLED viewfinder with a 37.3° field of view and a 23mm high eyepoint.
  • TTL (through-the-lens) face-detection system: Powerful face detection capabilities to adjust exposure to produce natural-looking skin tones
  • Multiple audio input options: A digital Multi Interface (MI) Shoe enables cable-less connection for high-quality sound; 3.5mm mic input jack is also provided for non-MI shoe microphones.
  • 33 megapixel high-resolution full-frame CMOS sensor: The full-frame 33MP Exmor R back-illuminated CMOS sensor delivers outstanding speed and image quality. The sensor provides improved color reproducibility, low-noise performance, 15 stop dynamic range and increased AF speed and performance
  • ISO 100-51,200 standard range; expandle to ISO 50-204,800 for stills and 100-102,400 for movies: Enhances shooting in varied and fast-changing lighting situations, including extremely low light; enables to capture beautiful images with reduced noise.
  • Never miss a shot with ultrafast 10 fps (frames per second): Mechanical and electronic shutters allow continuous shooting of 33 megapixels still images at up to 10 fps with AF/AE tracking.
  • Capture spectacular movies in HD: Thanks to the increase 33MP resolution, the Alpha 7 IV oversamples 7K when recording full-frame 4K movies at up to 30p, resulting in high-resolution, highly detailed 4K for beautifully expressive, rich images
  • Communication features for easy sharing and distribution: Equipped with robust wired and wireless communication features for more comfortable sharing and distribution; in-body wireless LAN uses 5GHz band in addition to 2.4GHz band for fast data transfer.
  • 3" vari-angle touch-screen LCD monitor: Features side-opening 3" 1.03-mega-dot touch-panel LCD monitor that offers ample brightness for clear viewing in outdoor settings; 3:2 aspect ratio makes efficient use of the display area.
  • BIONZ XR image processor for up to 8x processing speed: Provides up to an 8x increase in processing speed; engine concentrates real-time processing of autofocus, image recognition and image quality adjustment to minimize processing latency for greatly increased movie and still processing power.
  • High-definition Quad-VGA OLED viewfinder: Features a 3.68 mega-dot high-definition Quad-VGA OLED viewfinder with a 37.3° field of view and a 23mm high eyepoint.
  • TTL (through-the-lens) face-detection system: Powerful face detection capabilities to adjust exposure to produce natural-looking skin tones
  • Multiple audio input options: A digital Multi Interface (MI) Shoe enables cable-less connection for high-quality sound; 3.5mm mic input jack is also provided for non-MI shoe microphones.
Whats Included
  • Alpha 7 IV camera
  • FE 28-70mm f/3.5-5.6 OSS Zoom Lens
  • Rechargable battery pack (NP-FZ100)
  • AC adapter
  • Lens front cap, lens rear cap
  • USB-A to USB-C cable (USB 3.2)
  • Shoulder strap
  • Eyepiece cup
  • Owner's manual
  • Alpha 7 IV camera
  • FE 28-70mm f/3.5-5.6 OSS Zoom Lens
  • Rechargable battery pack (NP-FZ100)
  • AC adapter
  • Lens front cap, lens rear cap
  • USB-A to USB-C cable (USB 3.2)
  • Shoulder strap
  • Eyepiece cup
  • Owner's manual

Q: How many images can I capture on a single battery charge?

A: You can capture up to 520 images on a single battery charge.

Q: Does this camera have a touch screen?

A: Yes, this camera has a 3" touch screen LCD monitor.

Q: Does this camera have image stabilization?

A: Yes, this camera features in-camera image stabilization.

Q: What is the maximum burst rate for this camera?

A: This camera has a burst rate of 10 frames per second.

Q: Can I use an external microphone with this camera?

A: Yes, the camera has a 3.5mm microphone input jack.

Q: What type of lens mount does this camera use?

A: This camera is compatible with Sony E-Mount lenses.

Q: What is the maximum resolution for video recording on this camera?

A: The Alpha 7 IV can record videos at a maximum resolution of 4K (2160p).

Q: Does this camera come with a Chinese language pack?

A: Hi Jason, Sony's commitment to customer satisfaction is our top priority. The camera does support both Traditional Chinese and Simplified Chinese language. Thank you so much for your question. And thank you for choosing Sony. - Pakorn (Sony Social Support)

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Sony - Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera with SEL2870 Lens - Black
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Sony - Alpha 7 III Mirrorless [Video] Camera with FE 28-70 mm F3.5-5.6 OSS Lens - Black

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Pros for Sony - Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera with SEL2870 Lens - Black
Overall Performance, Battery Life, Ease of Use, Autofocus, ErgonomicsCamera Quality, Ease of use, Overall Performance, Resolution, Auto FocusCamera Quality, Ease of use, Overall Performance, Battery Life, WeightCamera Quality, Overall Performance, Resolution, Ease of use, Screen
Cons for Sony - Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera with SEL2870 Lens - Black
Heat DissipationWeight, Overheating, Battery LifeMenu, Learning Curve, Touch ScreenWeight

Specs

Reviews

Customers are saying

Customers regard the Alpha 7 IV camera highly, praising its exceptional image quality, ease of use, and impressive low-light capabilities. Many appreciate its lightweight design and find the autofocus system reliable. While some users experienced overheating issues, the overall feedback points to a positive user experience. The camera's price point is also frequently cited as a significant advantage.

This summary was generated by AI based on customer reviews.

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Sony a7 4

    recently purchased the Sony A7 IV from Best Buy, and I couldn’t be happier with my decision. As someone who shoots both photo and video content, this camera strikes the perfect balance between professional-level performance and ease of use. Image Quality: The 33MP full-frame sensor delivers incredibly sharp, detailed images with great dynamic range. Colors are vibrant yet natural, and low-light performance is top-notch — minimal noise even at higher ISOs. Video Features: One of the main reasons I upgraded was for video, and the A7 IV truly shines here. 4K 60p with 10-bit 4:2:2 internal recording gives me cinematic quality straight out of the camera. S-Cinetone is a game-changer for beautiful skin tones, and the autofocus in video is insanely accurate. Autofocus & Performance: Sony’s real-time Eye AF for humans and animals is blazing fast and incredibly accurate. Whether I'm shooting portraits or fast-moving action, the A7 IV keeps up effortlessly. Build & Usability: The updated grip feels solid and comfortable in hand. Dual card slots, full-size HDMI, and the fully articulating touchscreen make this camera incredibly versatile for creators on the go. Bonus: Huge shoutout to Best Buy for the fast shipping and great packaging. Their customer service is always reliable, and I felt confident purchasing such a high-end product through them. Overall: If you’re looking for a camera that can handle professional photography and serious video work, the Sony A7 IV is an unbeatable choice. It’s an investment — but one that pays off in every shot. Highly recommended!

    Posted by RamonR

  • Rated 5 out of 5 stars

    Photographers swiss army knife

    Truly gets the job done, beautiful quality, better than the a7iii just because u wont have to upgrade gor a while, and way better than my old cannon rebel t7. Auto focus is awesome, and the custome setting’s definitely make it easy to switch to for any situation, shot music videos, advertisements, sports highlights, and being able to switch to photography on the fly is another amazing feature. I love it!

    Posted by

  • Rated 5 out of 5 stars

    From Snapshots to Cinema—This Camera Does It All!

    Absolutely love my Sony Alpha 7 IV with the 28-70mm lens! It’s been amazing for both video and photos. The 4K footage is super crisp, autofocus is spot-on, and the color quality is beautiful. For photography, the detail and dynamic range are impressive, and the camera just feels great to use. The lens is lightweight and versatile—perfect for everyday shooting. It’s made creating content way more fun and seamless. Highly recommend it to anyone serious about stepping up their photo or video game!

    Posted by BruceV

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