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Sony a9 Mirrorless Camera

BH #SOA9B • MFR #ILCE9/B
Sony a9 Mirrorless Camera
Key Features
  • 24.2MP Full-Frame Stacked CMOS Sensor
  • BIONZ X Image Processor & Front-End LSI
  • 693-Point AF System & 20 fps Shooting
  • Blackout-Free Quad-VGA 3.7m-Dot OLED EVF
Bringing the speed Sony mirrorless shooters have been waiting for, the a9 Mirrorless Camera takes impressive multimedia capabilities and ups the processing capabilities for ultra-fast continuous shooting. Making use of a 24.2MP full-frame Exmor RS stacked CMOS sensor and BIONZ X image processor, the a9 is capable of shooting at up to 20 fps, recording UHD 4K video internally, and shooting with an expanded sensitivity range to ISO 204,800. Balancing the quickness of the processor is a well-matched 693-point phase-detection autofocus system that covers 93% of the image area for accurate and quick subject tracking in a variety of lighting conditions. Additionally, complementing both the imaging and focusing assets, the a9 also sports 5-axis SteadyShot INSIDE image stabilization to minimize the appearance of camera shake when shooting handheld.
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Sony A9 Overview

  • 1Description
  • 224.2MP Full-Frame Exmor RS Stacked CMOS Sensor
  • 3BIONZ X Image Processor
  • 4693-Point Phase-Detection AF
  • 55-Axis SteadyShot INSIDE Image Stabilization
  • 6UHD 4K Video Recording in XAVC S Format
  • 7Slow & Quick Motion
  • 8Enhanced Zebra Function
  • 9Time Code and User Bit Settings
  • 10Body Design
By B&H Photo's

Bringing the speed Sony mirrorless shooters have been waiting for, the a9 Mirrorless Camera takes impressive multimedia capabilities and ups the processing capabilities for ultra-fast continuous shooting. Making use of a 24.2MP full-frame Exmor RS stacked CMOS sensor and BIONZ X image processor, the a9 is capable of shooting at up to 20 fps, recording UHD 4K video internally, and shooting with an expanded sensitivity range to ISO 204,800. Balancing the quickness of the processor is a well-matched 693-point phase-detection autofocus system that covers 93% of the image area for accurate and quick subject tracking in a variety of lighting conditions. Additionally, complementing both the imaging and focusing assets, the a9 also sports 5-axis SteadyShot INSIDE image stabilization to minimize the appearance of camera shake when shooting handheld.

Matching its professional imaging capabilities is a well-rounded physical construction that is fully weather-sealed for use in trying environmental conditions. For clear, uncompromised viewing, a quad-VGA OLED Tru-Finder is featured with an impressive 3.686m-dot resolution and 120 fps refresh rate for clear, bright, and smooth eye-level viewing. Alternatively, a 3.0" 1.44m-dot tilting touchscreen LCD is also available to benefit working from high and low angles. Dual SD memory card slots, a customizable menu system, and a variety of physical control dials further round out the camera's intuitive design, and built-in Wi-Fi and Bluetooth enables wireless image sharing and remote camera control from linked mobile devices.

24.2MP Full-Frame Exmor RS Stacked CMOS Sensor

Poised for speed, the a9 features a first-for-full-frame 24.2MP Exmor RS stacked CMOS that affords impressively quick readout speeds to benefit up to 20 fps continuous shooting and UHD 4K video recording. The sensor's back-illuminated design also affords high sensitivity to an extended ISO 204,800 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 Image Processor

Working in conjunction with the stacked CMOS sensor is an apt BIONZ X image processor that ensures quick processing speeds to keep up with fast-paced shooting applications. Continuous shooting up to 20 fps is supported for up to 362 consecutive JPEGs, or 241 raw frames, along with a top electronic shutter speed of 1/32,000 for freezing fast-moving subjects or working in bright lighting conditions. 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. 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.

693-Point Phase-Detection AF

Covering 93% of the image area, a focal-plane phase-detection autofocus system incorporates 693 points along with 25 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. The use of phase-detection points also enables the use of A-mount lenses via the optional LA-EA3 or LA-EA1 lens mount adapters with full continuous AF/AE tracking compatibility.

The apt focus system also lends itself to a variety of focusing functions for refined accuracy, including Lock-on AF, which maintains focus on moving subjects throughout the use of a configurable frame that is set over the desired moving subject, and Expand Flexible Spot, which employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus. Additionally, Eye AF can be used to base focus on recognized subjects' eyes for portraits and is available in both AF-S and AF-C modes. Autofocus can also be used in conjunction with the Focus Magnifier function for critical focus when homing in on minute subject details.

In addition to autofocus, the a9 also features a Peaking MF function to benefit manual focus control by highlighting sharp edges of contrast for a more objective means of acquiring sharp focus.

5-Axis SteadyShot INSIDE Image Stabilization

Packed into the robust a9 is a 5-stop effective 5-axis SteadyShot INSIDE image stabilization system that 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 20MP (6000 x 3376) resolution, 2.4x 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 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.

4K video recording also avails the ability to produce 8MP stills during playback by taking a frame grab from a movie and storing it as a separate file.

Slow & Quick Motion

Take more control over your video capture capabilities with a variety of new frame rates available in an S&Q mode. This will allow shooters to capture Full HD video at one of either steps between 1-120 fps. These settings will allow you to slow down action as well as speed up a slow-moving scene. This setting is also NTSC/PAL switchable.

Enhanced Zebra Function

An enhanced Zebra function is ideally suited to aid in monitoring exposure values in high-contrast scenes. Video signal level targets can be set from 0 to 109, and specific ranges can be set to make exposure level adjustments easier.

Time Code and User Bit Settings

A time code can be used to record hours, minutes, seconds, frames on image data for more precise editing while the User Bit function can record date, time, and scene number to aid in editing together footage from multiple cameras.

Body Design

  • Quad-VGA OLED Tru-Finder features a 3.686m-dot resolution and a 0.78x magnification for bright and clear viewing. The EVF also sports a Zeiss T* anti-reflective coating to reduce reflections and a high 120 fps refresh rate can be used to reduce lag for a smoother viewing experience. Additionally, a fluorine coating has been applied to the outermost viewfinder element to benefit cleaning.
  • Rear 3.0" 1.44m-dot tilting touchscreen LCD is available for live view shooting and menu navigation. The touchscreen enables Touch Focus for intuitive adjustment of your focus point, and the tilting design benefits working from both high and low angles.
  • Dual SD card slots provide a more flexible means for storing files. The lower card slot supports UHS-II type cards, and the slots can be configured to do an in-camera backup, segregated raw/JPEG recording, or overflow saving.
  • My Menu function can be used to customize your menu items for easy, direct access with up to 72 options to be set and ordered.
  • Stacked drive mode and focus mode dials, a dedicated AF-ON button, and a rear multi-selector all afford greater efficiency when switching focus modes, points, or exposure settings.
  • Integrated LAN terminal enables making wired FTP transfers for notably fast transfer speeds. Also, the first three characters of the file name can be customized for easier organization during post-production.
  • Built-in Wi-Fi enables the a9 to instantly share imagery to mobile devices for direct sharing online to social networking, via email, and to cloud storage sites. 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.
  • Magnesium-alloy body design is both lightweight and durable, and also weather-sealed for use in trying environmental conditions.
  • Integrated PC sync terminal for wired flash sync with strobe packs or wireless radio remotes.
UPC: 027242907362

Sony A9 Specs

Imaging
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
Crop FactorNone
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
Metering MethodCenter-Weighted Average, Highlight Weighted, Multi-Zone, Spot
Exposure ModesAperture Priority, Auto, Manual, Program, Shutter Priority
Exposure Compensation-5 to +5 EV (1/3, 1/2 EV Steps)
Metering Range-3 to 20 EV
Continuous ShootingUp to 20 fps at 24.2 MP for up to 362 Frames (JPEG) / 241 Frames (Raw)
Up to 10 fps at 24.2 MP
Up to 5 fps at 24.2 MP
Up to 2.5 fps at 24.2 MP
Self-Timer2/5/10-Second Delay
Still Image Capture
Aspect Ratio3:2, 16:9
Image File FormatJPEG, Raw
Bit Depth14-Bit
Internal Video Capture
Recording ModesXAVC S
UHD 4K (3840 x 2160) at 24.00p/25p/29.97p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 100p/119.88p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 24.00p/25p/29.97p/50p/59.94p [50 Mb/s]
AVCHD
Full HD (1920 x 1080) at 50p/59.94p [28 Mb/s]
Full HD (1920 x 1080) at 24.00p/25p/50i/59.94i [17 to 24 Mb/s]
MP4
Full HD (1920 x 1080) at 50p/59.94p [28 Mb/s]
Full HD (1920 x 1080) at 25p/29.97p [16 Mb/s]
HD (1280 x 720) at 25p/29.97p [6 Mb/s]
Video SystemNTSC/PAL
Built-In Microphone TypeStereo
External Video Capture
External Recording Modes4:2:2 8-Bit via HDMI
UHD 4K (3840 x 2160) at 24.00p/25p/29.97p
Full HD (1920 x 1080) at 24.00p/50i/50p/59.94i/59.94p
IP StreamingNone
Interface
Media/Memory Card SlotSlot 1: SD/SDHC/SDXC (UHS-II)
Slot 2: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
Video I/O1 x Micro-HDMI Output
Audio I/O1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
1 x 1/8" / 3.5 mm TRS Stereo Headphone Output
Other I/O1 x RJ45 Output
1 x PC Sync Socket Output
1 x Sony Multi/USB Micro-B Input/Output
WirelessWi-Fi, Bluetooth, NFC
Monitor
Size3.0"
Resolution1,440,000 Dot
Display TypeTilting Touchscreen LCD
Viewfinder
TypeBuilt-In Electronic
Size0.5"
Resolution3,686,400 Dot
Eye Point23 mm
Coverage100%
MagnificationApprox. 0.78x
Diopter Adjustment-4 to +3
Focus
Focus TypeAuto and Manual Focus
Focus ModeContinuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
Autofocus PointsPhase Detection: 693
Contrast Detection: 25
Autofocus Sensitivity-3 to +20 EV
Flash
Built-In FlashNo
Maximum Sync Speed1/250 Second
Flash Compensation-3 to +3 EV (1/3, 1/2 EV Steps)
Dedicated Flash SystemP-TTL
External Flash ConnectionHot Shoe, PC Terminal
Environmental
Operating Temperature32 to 104°F / 0 to 40°C
General
Battery Type1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh
Tripod Mounting Thread1 x 1/4"-20 Female (Bottom)
Accessory Mount1 x Intelligent Hot Shoe on Camera Body
Dimensions (W x H x D)5 x 3.8 x 2.5" / 126.9 x 95.6 x 63 mm
Weight1.5 lb / 673 g
Packaging Info
Package Weight3.495 lb
Box Dimensions (LxWxH)9.75 x 6.2 x 5.7"

Sony A9 Reviews

Amazing

By Ramon
Rated 5 out of 5
Date: 2021-08-23

This camera is amazing! It's autofocus and image quality is out-of-this-world. It is now discontinued but I'm sure the a9ii, it's replacement, is even better.

Sony A9 Mirrorless

By Diana
Rated 5 out of 5
Date: 2021-07-05

Camera is excellent! Video quality is amazing. Photo frames per second what I wanted for sports and wildlife. Exceeded my expectations.

Sony a9

By Gary
Rated 5 out of 5
Date: 2021-06-30

Love the camera. I own the Sony A7R III. I use it for landscape and will use the a9 as my wildlife camera.

Great Camera

By Dr. John A.
Rated 5 out of 5
Date: 2021-06-09

Great camera.

Fantastic performance

By Dana
Rated 5 out of 5
Date: 2021-05-17

I am very happy with my purchase of the Sony A9. I do mainly wildlife photography and it is as if it was designed for this type of photography. b&h puchase is always stress free.

Pure awesomeness

By Jesse
Rated 5 out of 5
Date: 2021-05-12

Bought this camera for wildlife photography and it is a beast. Absolutely loving the mirrorless technology. 20 frames a second freezes every moment. I am beyond ecstatic, far passed my expectations.

Tis Wonderful

By Ramon
Rated 5 out of 5
Date: 2021-08-04

I bought the a9 for the 20 frames per second and wonderful autofocus. As a bonus I got beautiful images too. They just look great.

A step above

By Jose
Rated 5 out of 5
Date: 2021-07-11

Previously owned a Nikon D500. NOT a Bad camera but cannot compete with the a9 focusing system. Focused shot of moving objects is amazing. Still learning all features. The only thing don't like are the plastic covers of ports (USB, ethernet, etc) feels cheap, and the compensation dial keeps changing inadvertedly while walking with the camera. Maybe a Little strip of paint tape Will Fix this LOL.

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