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Sony a9 II Mirrorless Camera

Sony a9 II Mirrorless Camera
Key Features
  • 24.2MP Full-Frame Exmor RS CMOS Sensor
  • BIONZ X Image Processor & Front-End LSI
  • 693-Point Phase-Detection AF System
  • Up to 20 fps Shooting, ISO 100-204800
The second generation of speed, the Sony a9 II takes the impressive feature-set of its predecessor and adds enhanced connectivity, a refined body design, and even quicker performance. Utilizing the proven 24.2MP full-frame Exmor RS BSI stacked CMOS sensor and an updated BIONZ X processor, the a9 II sports especially quick and responsive shooting capabilities. And the updated construction now sports a more ergonomic shape, improved weather sealing, and better connectivity and transfer speeds.
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Sony A9 II Overview

  • 1Description
  • 2Next Level Speed
  • 3Exmor RS BSI Stacked Sensor and BIONZ X Image Processor
  • 4Autofocus and Image Stabilization
  • 5UHD 4K Video Recording in XAVC S Format
  • 6Refined Body Design
By B&H Photo's
Next Level Speed
The second generation of speed, the Sony a9 II takes the impressive feature-set of its predecessor and adds enhanced connectivity, a refined body design, and even quicker performance. Utilizing the proven 24.2MP full-frame Exmor RS BSI stacked CMOS sensor and an updated BIONZ X processor, the a9 II sports especially quick and responsive shooting capabilities. And the updated construction now sports a more ergonomic shape, improved weather sealing, and better connectivity and transfer speeds.
Exmor RS BSI Stacked Sensor and BIONZ X Image Processor
24.2MP Full-Frame Stacked CMOS Sensor
Built for speed, the a9 II utilizes a 24.2MP Exmor RS BSI stacked CMOS sensor, along with an updated BIONZ X image processor, that yields impressively quick and responsive performance. Up to 20 fps continuous shooting is possible using an electronic shutter or 10 fps shooting is supported with a mechanical shutter. The sensor's back-illuminated design also affords high sensitivity to an extended ISO 204800 with reduced noise for clean image quality in a variety of lighting conditions. Additionally, uncompressed raw files can be recorded in 14-bit for greater color fidelity and post-production flexibility.
BIONZ X Processing and Electronic Shutter
The BIONZ X processor also works in conjunction with a high-speed front-end LSI to realize faster processing times along with a wide dynamic range with smooth tonal rendering. Benefitting the fast recording capabilities is an equally quick AF/AE metering system that functions at 60 times per second to continuously evaluate the scene in order to lock onto and track moving subjects. Automatic anti-flicker shooting also recognizes and times the shutter action to minimize the flicker effect for more consistent results on still images. Additionally, due to the use of an electronic shutter, totally blackout-free monitoring is possible with the electronic viewfinder for more accurate compositions of moving subjects.
Autofocus and Image Stabilization
Fast Hybrid AF System
Covering 93% of the image area, a Fast Hybrid AF system incorporates 693 phase-detection points along with 425 contrast-detection areas for quick and precise focusing in a variety of lighting conditions with sensitivity down to -3 EV. The density of focusing points from this hybrid AF system also enables High-density Tracking AF Technology, which is adept at tracking moving subjects in a variety of lighting conditions. Updated AF algorithms also benefit maintaining critical focus on erratically or unpredictably moving subjects.
  • Lock-on AF maintains focus on moving subjects throughout the use of a configurable frame that is set over the desired moving subject
  • Expand Flexible Spot employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus
  • Focus frame color is selectable, between white and red, and AF tracking is possible with apertures narrower than f/16 with select lenses when working in Focus Priority mode
  • Eye AF can be used to base focus on recognized human subjects' eyes for portraits and is available in both AF-S and AF-C modes, for both stills and video. Eye AF can be used when photographing animal subjects, too, with any focusing mode when shooting stills
  • Focus Magnifier function can be used for critical focus when homing in on minute subject details
  • Rear touchscreen can also be used for Touch Focus control, and a Touchpad Focus Control mode lets you use the rear screen intuitively while keeping your eye to the viewfinder
  • When working in AF-C mode, the focus point can be moved while the shutter button is half-pressed, making it easier to quickly shift focus without losing sight of the action
5-Axis SteadyShot INSIDE Image Stabilization
The a9 II incorporates an enhanced 5.5-stop effective 5-axis SteadyShot INSIDE image stabilization system, which compensates for five different types of camera shake encountered during handheld shooting of stills and video. This allows users to confidently use any lens, even adapted lenses, for critical imaging without encountering blur from camera shake.

For long focal lengths, the system will correct for pitch and yaw adjustments. Macro and high-magnification imagery, on the other hand, will benefit from the inclusion of horizontal and vertical shift compensation. All shooting styles will get usage out of the roll compensation. All 5 axes of stabilization will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilization.
UHD 4K Video Recording in XAVC S Format
Internal recording of UHD 4K movies is possible in multiple frame rates up to 30 fps and, based on the Super35mm recording area and effective 6K resolution, oversampling renders greater detail and full pixel readout is possible, that is void of pixel binning, for higher quality imagery with reduced moiré and aliasing. Full-frame 4K recording has also been dramatically improved for improved quality when working at mid to high sensitivities to permit full use of the entire sensor width. Full HD 1080p recording is also supported in frame rates up to 120 fps, and both resolutions utilize the 100 Mbps XAVC S format contained within an MP4 wrapper with 4:2:0 sampling. The high-speed, 120 fps recording also enables 4x and 5x slow-motion movie recording with the frame rate set to either 30p or 24p. In addition to high-resolution internal recording, uncompressed HDMI output also enables the use of an optional external recorder for clean 4K recording with 4:2:2 sampling.
Refined Body Design
  • A Quad-VGA OLED Tru-Finder EVF is featured and has a 3.69m-dot resolution and 0.78x-magnification for bright, clear viewing in rich detail, and a dedicated High Quality setting enables a 120 fps refresh rate for especially smooth playback of moving subjects. Additionally, a fluorine coating has been applied to the outermost viewfinder element to benefit cleaning.
  • In addition to the EVF, a 3.0" 1.44m-dot rear LCD is also available, which has a touch panel design for intuitive operation and focusing control. The screen also tilts upward and downward to benefit working from high and low angles.
  • Magnesium alloy chassis assures rigidity, durability, and stability while remaining lightweight. The lens mount has also been improved to better support heavy lenses, and the grip rigidity has been improved for more comfortable hand-holding.
  • Extensive weather-sealing, including enhanced sealing around the battery cover, terminal cover, and chassis joints, has been employed to resist dust and moisture for reliable operation in harsh weather conditions.
  • Using the same NP-FZ100 battery as its predecessor, the a9 II's battery life is rated for approximately 500 shots per charge with the EVF or 690 shots with the rear LCD.
  • Durable shutter design has been tested for 500,000 actuations.
  • Compatible with optional VG-C4EM Vertical Grip.
  • Dual SD memory card slots allow for flexible file saving and handling and can be configured to partition raw and JPEG files or can be used for overflow recording. Both of the card slots are rated to support UHS-II memory cards for faster transfer speeds.
  • USB 3.2 Gen 1 Type-C port is featured, in addition to a micro-USB port, for faster, more reliable tethering support. The USB Type-C connection allows the camera to be charged from the host power source while connected.
  • Integrated PC sync terminal for wired flash sync with strobe packs or wireless radio remotes.
  • Updated Multi Interface Shoe supports working with the optional ECM-B1M Shotgun Microphone or XLR-K3M XLR Adapter Kit, which provide improved, clear audio recording sound by sending a digital audio signal to the camera, opposed to an analog signal.
  • Both 3.5mm microphone and headphone ports are featured for improved quality and control over audio when recording videos.
  • Built-in Wi-Fi enables the a9 II to instantly share imagery to mobile devices for direct sharing online, and support for both 2.4 and 5 GHz bands also enables wireless tethered shooting support. NFC (Near Field Communication) is also supported, which allows for one-touch connection between the camera and compatible mobile devices; no complex set-up is required. Once connected, the linked mobile device can also display a live view image on its screen and remotely control the camera's shutter.
  • Bluetooth connectivity allows for location data acquisition.
  • Integrated Ethernet port has been upgraded to 1000BASE-T speed for quick wired LAN sharing and remote operation.
  • When working over a wired LAN, the Remote Camera Tool 2.1 app now has been enhanced for a reduced release time lag and live view delays as well as support for remote SD card formatting, FTP server switching, and changes to the still image storage destination. Wired or wireless LAN transfers can also occur in the background, while continuing to shoot.
  • Imaging Edge Remote for desktop now supports the a9 II for PC Remote shooting via the Wi-Fi connection or tethered by the wired USB Type-C port. An updated data transfer control now makes it possible to transfer files from an SD card over Wi-Fi using the Imaging Edge Mobile app even when the camera is powered off.
  • Transfer & Tagging add-on app can send FTP setting parameters from your mobile device to the camera, offers automatic data upload to an FTP server with attached metadata, and can perform automatic voice-to-text conversion.
  • Voice Memos can be recorded in conjunction with still images and allow for attaching up to 60-second-long sound recordings to individual images. Saved as WAV audio files, these memos can be attached to files and played when the images are reviewed. Using the Transfer & Tagging add-on on a smartphone, you can automatically or manually convert this audio into text to be embedded in the image's metadata.
  • Save/load camera settings is possible in-camera as well as to an SD card for working with the same shooting settings with multiple camera bodies.
  • Customizable Fn button can be set to handle separate tasks depending on if working in stills or video modes.
  • Up to 10 distinct FTP settings can be saved and stored to an SD card, or up to 20 different settings can be saved via the Imaging Edge Mobile app.

Sony A9 II Specs

Lens MountSony E
Sensor ResolutionActual: 28.3 Megapixel
Effective: 24.2 Megapixel (6000 x 4000)
Sensor Type35.6 x 23.8 mm (Full-Frame) CMOS
Image StabilizationSensor-Shift, 5-Axis
Built-In ND FilterNone
Capture TypeStills & Video
Exposure Control
Shutter TypeElectronic Shutter, Mechanical Focal Plane Shutter
Shutter SpeedMechanical Shutter
1/8000 to 30 Seconds
Electronic Shutter
1/32000 to 30 Seconds
Bulb/Time ModeBulb Mode
ISO SensitivityPhoto
100 to 51,200 (Extended: 50 to 204,800)
100 to 51,200 (Extended: 100 to 102,400)
Metering MethodCenter-Weighted Average, Highlight Weighted, Multi-Zone, Spot
Exposure ModesAperture Priority, Manual, Program, Shutter Priority
Exposure Compensation-5 to +5 EV (1/3, 1/2 EV Steps)
Metering Range-3 to 20 EV
White BalancePresets: Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Continuous ShootingUp to 20 fps at 24.2 MP for up to 239 Frames (Raw) / 361 Frames (JPEG)
Up to 10 fps at 24.2 MP for up to 239 Frames (Raw) / 361 Frames (JPEG)
Interval RecordingYes
Self-Timer2/5/10-Second Delay
Still Image Capture
Image Sizes3:2 Raw
6000 x 4000
4:3 Raw
5328 x 4000
16:9 Raw
6000 x 3376
1:1 Raw
4000 x 4000
3:2 JPEG
6000 x 4000
3936 x 2624
3008 x 2000
4:3 JPEG
5328 x 4000
3488 x 2624
2656 x 2000
16:9 JPEG
6000 x 3376
3936 x 2216
3008 x 1688
1:1 JPEG
4000 x 4000
2624 x 2624
Aspect Ratio1:1, 3:2, 4:3, 16:9
Image File FormatJPEG, Raw
Bit Depth14-Bit
Internal Recording ModesXAVC S
UHD 4K (3840 x 2160) at 24.00/25/29.97 fps [60 to 100 Mb/s]
1920 x 1080p at 24.00/25/29.97/50/59.94/100/ fps [50 to 100 Mb/s]
1920 x 1080i at 50/59.94 fps [17 to 24 Mb/s]
External Recording Modes4:2:2 8-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98/24.00/25/29.97 fps
1920 x 1080p at 23.98/24.00/50/59.94 fps
1920 x 1080i at 50/59.94 fps
Broadcast OutputNTSC/PAL
IP StreamingNone
Built-In Microphone TypeStereo
Audio RecordingAVCHD: 2-Channel AC-3 Audio
XAVC S: 2-Channel LPCM Audio
Media/Memory Card SlotDual Slot: SD/SDHC/SDXC (UHS-II)
Video I/O1 x Micro-HDMI Output
Audio I/O1 x 1/8" / 3.5 mm TRS Stereo Headphone Output
1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
Power I/O1 x USB-C Input/Output
Other I/O1 x Sony Multi/Micro-USB Input/Output (Shared with Remote Input)
1 x USB-C (USB 3.2 / 3.1 Gen 1) Input/Output (Shared with Power Input)
1 x PC Sync Socket Output
1 x RJ45
WirelessWi-Fi, Bluetooth
Global Positioning (GPS, GLONASS, etc.)None
Resolution1,440,000 Dot
Display TypeTilting Touchscreen LCD
TypeBuilt-In Electronic (OLED)
Resolution3,686,400 Dot
Eye Point23 mm
MagnificationApprox. 0.78x
Diopter Adjustment-4 to +3
Focus TypeAuto and Manual Focus
Focus ModeContinuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
Autofocus PointsPhase Detection: 693
Contrast Detection: 425
Autofocus Sensitivity-3 to +20 EV
Built-In FlashNo
Flash ModesAuto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless
Maximum Sync Speed1/250 Second
Flash Compensation-3 to +3 EV (1/3, 1/2 EV Steps)
Dedicated Flash SystemP-TTL
External Flash ConnectionIntelligent Hot Shoe, PC Terminal
Operating Temperature32 to 104°F / 0 to 40°C
Battery Type1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 500 Shots)
Tripod Mounting Thread1 x 1/4"-20 Female (Bottom)
Accessory Mount1 x Hot Shoe Mount
Material of ConstructionMagnesium Alloy
Dimensions (W x H x D)5.07 x 3.8 x 3.05" / 128.9 x 96.4 x 77.5 mm
Weight1.49 lb / 678 g (With Battery, Recording Media)
Packaging Info
Package Weight3.395 lb
Box Dimensions (LxWxH)9.6 x 6.1 x 5.6"

Sony A9 II Reviews

NOT a Sony guy

By David
Rated 5 out of 5
Date: 2023-03-08

I have been a dedicated Nikon user for most of my career, and have taught on just about every platform out there. I am not a big fan of Sony's color, nor handling of dynamic range. With that being said, I have been using the A9II for nearly two years for filming and photography in the studio, and outdoors. I am thoroughly impressed with the speed at which the A9II can focus, and create exposures. I have sold all of my other gear and only shoot with this system now. I'd like to see picture profiles added to make this a more fully rounded video system. This camera can do literally everything! Great product Sony!!

Worthy successor

By Geoffrey
Rated 5 out of 5
Date: 2022-03-13

Tons of reviews already written. Improvements to my a9? 10 fps, mechanical shutter and ANTI-FLICKER Yes!

Perfect for all my needs

By Eric
Rated 5 out of 5
Date: 2022-02-22

Such an amazing camera! Very easy to learn all the dials and settings! I use this for professional disc golf photos/videos and bird photography. Buy it! Worth every penny.

Awesome piece of gear!!

By Robert
Rated 5 out of 5
Date: 2022-02-08

I love this camera! I have not been disappointed with this purchase. I mainly shoot real estate but I love this camera body for action/nature photography.

Top of the line

By Dustin
Rated 5 out of 5
Date: 2021-08-03

Nothing to say but positive things


By Arthur
Rated 5 out of 5
Date: 2021-05-20

Amazing camera. Performs perfectly out of the box. I have done a wedding, sports, and wildlife with this camera so far and it excels at it all! Expensive, but I don't see me needing a new body for quite some time!


By Synergy_Studio
Rated 4 out of 5
Date: 2023-02-17

Great Camera Except……. It needs more Megapixels. It is pretty good in all other realms and could be improved in time by adding more functionality.

Nearly perfect-and a blast to use

By Gregory
Rated 5 out of 5
Date: 2022-05-26

Plenty of pixels to suit me; great dynamic range and low light performance; fast and crisp focus; 20 new-focus frames per second; stunningly good tracking. The only thing I've had go wrong is that the focus system gets locked into a focus distance with a blurry image and won't focus on the scene just a few meters farther distant. This has only happened two or three times in several hundred hours of use. The fix is to focus on something close and try again. I have missed a few good shots because of it, but I've made hundreds of good shots that I could never get with my previous camera. I'm very happy with the A9II.

See any errors on this page? Let us know


Does the a9II's 20fps Burst Speed slow down if ...

Does the a9II's 20fps Burst Speed slow down if shooting at uncompressed RAW like the original a9 does?
Asked by: Dustin
Hi Dustin, The shooting speed during continuous shooting becomes slower when [RAW File Type] is set to [Uncompressed] on the Sony α9II.
Answered by: SonyListens
Date published: 2020-01-16

Does anyone have an issue with the new grip ...

Does anyone have an issue with the new grip pressing/irritating the top fingers especially when using longer lenses?
Asked by: Derek
So far the universal response to this (and the a7R MKIV's) new and enhanced grip has been entirely positive. As you can see from the side view, it's smaller on top so that part of it is still similar to that of its predecessor. Have you experienced any issues with the new grip?
Answered by: Yoni
Date published: 2019-12-24

How does this camera do in hot weather? I've had ...

How does this camera do in hot weather? I've had a lot of issues with the A7RIV overheating when I was filming/shooting outdoors. It didn't take much, maybe 30 minutes in the afternoon and it will start turning off. Does the A9 have the same issue?
Asked by: Nathaniel
Yes the Sony A9ii can also overheat in hot weather.
Answered by: Daniel
Date published: 2022-08-04

I see there is an special dial for af, will ...

I see there is an special dial for af, will anyway be the option to define a custom key to change quickly from af-c to af-s if hold? or the only way to do this is by moving the dial?
Asked by: Ezequiel Jose
You can set almost any button the camera as a custom key, including the 3 custom keys, so yes.
Answered by: Cliff
Date published: 2020-07-17

Ok I have the Sony A7iii and love it, as I do ...

Ok I have the Sony A7iii and love it, as I do bird photography and Video using my DJI RSC2. But I need the faster focus tracking like the A9 , but I will have to sell my A7iii to get the A9 from you. But the A9 does not have picture profiles . Will the A9 still do good video using standard video profile?
Asked by: Jerry
Though the A9 does not have picture profiles, the standard video profile is more than fine and can even still be adjusted slightly if you need to make minor adjustments in post. But overall, the A9 would be a much better suited camera when it comes to speed and tracking for bird photography and videography.
Answered by: Zachariah
Date published: 2021-03-04

How will be this camera for video? I know it will ...

How will be this camera for video? I know it will obviously not be bad, but with an alpha 7iii it’s possible to get pretty sharp images already and I am wondering if this would be possible with this one. I really need that versatility in a camera.
Asked by: Allan
The Sony Alpha a9 II Mirrorless Digital Camera would be a great option for video recording usage needs.
Answered by: Manzell
Date published: 2020-01-04

Which camera would be more versatile for wildlife ...

Which camera would be more versatile for wildlife photography, the Sony A9II or the Sony A 7R IV ?
Asked by: William
Silent shooting with the stacked sensor is also a large plus with the A9 II. While the A7RIV can also shoot silently the image can look like jello if it is moving quickly. This can be a big plus if close to wildlife. It is also good because people don't know exactly when you are taking pictures and when you are not. The biggest plus of the A7RIV is how much you can crop and keep good resolution. Files for the A7RIV will take a lot of processing power (need a powerful laptop and desktop to edit) and hard drive space (you'll likely need a few extra hard drives), but the level of detail is absolutely amazing. The focus is better on the A9ii according to reviews while you will potentially miss some shots on the A7RIV that the A9ii will deliver.
Answered by: Jonathan
Date published: 2022-07-15

Does it offer Picture Profiles in camera? Or ...

Does it offer Picture Profiles in camera? Or customization of detail and contrast levels?
Asked by: Greg
At this time, full specifications have not yet been released. Stay tuned for updates as they become available.
Answered by: Kirk
Date published: 2019-10-03
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