Sony Alpha a9 Mirrorless Digital Camera (Body Only)

Sony Alpha a9 Mirrorless Digital Camera (Body Only)

Sony Alpha a9 Mirrorless Digital Camera (Body Only)

B&H # SOA9B MFR # ILCE9/B
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Product Highlights

  • 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
  • Internal UHD 4K Video Recording
  • 5-Axis SteadyShot INSIDE Stabilization
  • 3.0" 1.44m-Dot Tilting Touchscreen LCD
  • ISO 204,800, Silent Electronic Shutter
  • Built-In Wi-Fi/Bluetooth, Dual SD Slots
  • Integrated LAN and PC Sync Terminals
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Sony a9 overview

  • 1Description

Bringing the speed Sony mirrorless shooters have been waiting for, the Alpha a9 Mirrorless Digital 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 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 Mount Sony E-Mount
Camera Format Full-Frame
Pixels Actual: 28.3 Megapixel
Effective: 24.2 Megapixel
Max Resolution 24 MP: 6000 x 4000
Aspect Ratio 3:2, 16:9
Sensor Type / Size CMOS, 35.6 x 23.8 mm
File Formats Still Images: JPEG, RAW
Movies: AVCHD Ver. 2.0, MP4, MPEG-4 AVC/H.264, XAVC S
Audio: AAC LC, AC3, Dolby Digital 2ch, Linear PCM
Bit Depth 14-Bit
Dust Reduction System Yes
Memory Card Type SD
SDHC
SDXC
Memory Stick Duo
Image Stabilization Sensor-Shift, 5-Way
AV Recording
Video Recording Yes, NTSC/PAL
Video Format 3840 x 2160p at 24, 25, 30 fps (100 Mb/s XAVC S)
3840 x 2160p at 24, 25, 30 fps (60 Mb/s XAVC S)
1920 x 1080p at 100, 120 fps (100 Mb/s XAVC S)
1920 x 1080p at 100, 120 fps (60 Mb/s XAVC S)
1920 x 1080p at 24, 25, 30, 50, 60 fps (50 Mb/s XAVC S)
1920 x 1080p at 50, 60 fps (28 Mb/s AVCHD)
1920 x 1080i at 50, 60 fps (24 Mb/s AVCHD)
1920 x 1080i at 50, 60 fps (17 Mb/s AVCHD)
1920 x 1080p at 24, 25 fps (24 Mb/s AVCHD)
1920 x 1080p at 24, 25 fps (17 Mb/s AVCHD)
1920 x 1080p at 50, 60 fps (28 Mb/s MP4)
1920 x 1080p at 25, 30 fps (16 Mb/s MP4)
1280 x 720p at 25, 30 fps (6 Mb/s MP4)
Aspect Ratio 16:9
Video Clip Length Not Specified by Manufacturer
Audio Recording Built-In Mic: With Video (Stereo)
Optional External Mic: With Video
Focus Control
Focus Type Auto & Manual
Focus Mode Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-servo AF (S)
Autofocus Points Phase Detection: 693
Contrast Detection: 25
Viewfinder/Display
Viewfinder Type Electronic
Viewfinder Size 0.5"
Viewfinder Pixel Count 3,686,400
Viewfinder Eye Point 23.00 mm
Viewfinder Coverage 100%
Viewfinder Magnification Approx. 0.78x
Diopter Adjustment -4 to +3 m
Display Screen 3" Rear Touchscreen Tilting LCD (1,440,000)
Screen Coverage 100%
Exposure Control
ISO Sensitivity Auto, 100-51200 (Extended Mode: 50-204800)
Shutter Type: Mechanical
Speed: 30 - 1/8000 Second , Bulb Mode
Type: Electronic
Speed: 30 - 1/32000 Second in Bulb Mode
Metering Method Center-Weighted Average Metering, Multi-Zone Metering, Spot Metering, Highlight Weighted
Exposure Modes Modes: Aperture Priority, Auto, Manual, Program, Shutter Priority
Metering Range: EV -3.0 - EV 20.0
Compensation: -5 EV to +5 EV (in 1/3 or 1/2 EV Steps)
White Balance Modes Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Buffer/Continuous Shooting Up to 20 fps at 24.2 MP for up to 362 Frames in JPEG Format
Up to 20 fps at 24.2 MP for up to 241 Frames in Raw Format
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
Flash
Built-in Flash No
Max Sync Speed 1 / 250 Second
Flash Compensation -3 EV to +3 EV (in 1/3 or 1/2 EV steps)
Dedicated Flash System P-TTL
External Flash Connection Hot Shoe, PC Terminal
Performance
Self Timer 10 Seconds, 5 Seconds, 2 Seconds
Connectivity 1/8" Headphone, 1/8" Microphone, HDMI D (Micro), Micro-USB, X-Sync Socket
Wi-Fi Capable Yes
Power
Battery 1 x NP-FZ100 Rechargeable Lithium-Ion Battery Pack, 7.2 VDC, 2280 mAh
Operating/Storage Temperature Operating
32 to 104°F (0 to 40°C)
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Dimensions (W x H x D) 5.0 x 3.8 x 2.5" / 126.9 x 95.6 x 63.0 mm
Weight 1.481 lb / 673 g
Packaging Info
Package Weight 3.65 lb
Box Dimensions (LxWxH) 9.6 x 6.2 x 5.7"

Sony a9 reviews

Alpha a9 Mirrorless Digital Camera (Body Only) is rated 4.8 out of 5 by 54.
Rated 5 out of 5 by from Absolutely Insane Camera! I had the opportunity to use this camera at the Sony Alpha Collective Kando Trip 1.0 a few weeks ago in California. Just picking this camera up, I could feel the improvements over the previous Sony models. It just felt sturdy. The autofocus tracking is like a cheat code honestly. It's so fast and rarely misses. The 'no blackout' feature is a much needed upgrade from previous models! Some points worth noting are, of course: the dynamic range, the ISO performance, build quality.....10/10. I couldn't put this camera down the whole week. Everything about this camera screams quality. Worth every penny. I'll be adding this camera to my arsenal soon enough!
Date published: 2017-06-17
Rated 5 out of 5 by from More keepers. More fun. I own a Canon 1Dx II, Canon 5DIV, and Nikon D500. I owned the Sony a7rII but sold it as at the end of the day, it never focused nearly as well as the aforementioned cameras. I'll put it simply, the a9 gives me more keepers than my Canon 1Dx II, and is easier and more fun to use to boot. I have the a9 configured to where I can get 4 different AF Areas (with AF activated by the push AND associated with preferred AF-S or AF-C) with 4 different buttons. It's a dream. Never really need to go into the menus to change AF Mode nor AF Area. Keep going Sony...
Date published: 2017-06-05
Rated 5 out of 5 by from A new standard for mirrorless cameras. I was hoping the A9 would impress me and it went above and beyond. I shoot a lot of family events with about 20 people in constant motion. The speed of the camera is outstanding but I was surprised at how the speed of the autofocus system was improved. I rarely miss a shot to poor focus anymore. Love the change adding a dial to the upper left for focus mode and drive mode. Makes if that much quicker to set up changing shots. The new battery really does put the old ones to shame. Guess what I like about Sony is they listen to their customers and get us what we need/want. They don't give the camera away, but I have to say, it's worth it.
Date published: 2017-08-11
Rated 5 out of 5 by from Great camera for wildlife The first mirrorless camera that can keep up with wildlife. As a long time Nikon user I've had a bit of a learning curve but it has been worth it. A silent shutter is the future of wildlife photography. It has allowed me to make photos that a regular shutter sound would have scarred off. Sure would be nice if Nikon would do the same. They still have a better selection of lenses. Do you really need 20 shots per second? Sometimes you do. But it can really increase your editing time, so you do not want it on high speed all the time. The only complaint that I have is that it will not automatically use the second memory card when the first one is full. Hopefully Sony will fix that in a future firmware.
Date published: 2017-08-14
Rated 5 out of 5 by from Fantastic camera I have shot Canon since 1973 and I am 69 years old. I was shooting with a Canon 5D mark lll all L glass. It was getting too heaving and I needed to make a change and Sony was leading the pack in mirrorless. I have been using it for less than three weeks and I can not be more pleased. The set up was pretty simple and the biggest plus for me is incredible fast focusing. I still like Canon but I have had three shoulder surgeries in the past year and had to make a switch to a lighter camera. I am very pleased with my Sony a 9 and would recommend it highly.
Date published: 2017-10-02
Rated 5 out of 5 by from Outstanding Camera! I am surprised and pleased how much I love A9. I am primarily a landscape photographer using a Sony A7rII or Canon 5DMkIV. The A9 IQ is outstanding. The smaller 24 mp files are a pleasure to work with and the eye focus AF is incredible...it's almost impossible to take a bad photograph of people with this feature. The battery is a significant improvement. I was able to get about 1200 shots on one battery. Fingers crossed the A7rIII/A9r will come with this battery. What you read in all of the professional reviews regarding user improvement and IQ is true in a real world experience. I will still use my A7rII and Canon 5DMkIV for landscape work, however the A9 is now my everyday camera, it's fantastic!
Date published: 2017-07-31
Rated 5 out of 5 by from Sony has made a great camera! Very pleased with this camera. I don't appreciate that the Log settings were left out but the ability to shoot video at 4K and 120fps at 1080p is great. For photography, the AF is improved from the a7 series and the silent shutter plus 20fps shooting is pretty unreal. Very fast and responsive. High level, professional clarity. Dealing with the Sony RAW images is a bit of a pain in the butt because you can't just review quickly from the laptop finder (from what I know), I have to open up Lightroom to view the files... but whatever. Sweet travel camera because of its form factor. Sony also makes very nice glass to compliment the body.
Date published: 2017-08-02
Rated 5 out of 5 by from Wouldn't hesitate to buy again! Like many, I come from a long history of shooting Canon over the years but made the switch to Sony for it's strong base in great quality 4k video. We now shoot stills and video with the Sony A7rII and the A9. Up until now, I still missed the responsiveness of a good Canon 1D series on our photo shoots. The A9 puts all those worries away and really lets you focus on grabbing the right decisive moment with ease. While I still use the A7rii for many shoots, the A9 with its consistent focus accuracy and speed and physical layout (new thumb joystick) makes shooting efficient and fun again. On the video side, I was initially concerned that it has no picture profiles like the other A series, but the video coming off the sensor is simply gorgeous without it (shooting in Ntrl)
Date published: 2017-07-11
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