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Sony a1 Mirrorless Camera

BH #SOA1B • MFR #ILCE-1/B
Sony a1 Mirrorless Camera
Key Features
  • 50MP Full-Frame Exmor RS BSI CMOS Sensor
  • Up to 30 fps Shooting, ISO 50-102400
  • 8K 30p and 4K 120p Video in 10-Bit
  • 4.3K 16-Bit Raw Video Output, S-Cinetone
A flagship in the truest sense, the Sony a1 is the one camera designed to do it all. Built without compromise, this full-frame mirrorless offers high-resolution for stills shooting, impressive 8K video recording, speed and sensitivity, and connectivity for the most demanding professional workflows.
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Sony A1 Overview

  • 1Description
  • 2
  • 3Exmor RS Stacked Sensor and BIONZ XR Processor
  • 48K 30p and 4K 120p Video
  • 5Fast Hybrid AF System
  • 6Body Design and Connectivity

Alpha Flagship

A flagship in the truest sense, the Sony a1 is the one camera designed to do it all. Built without compromise, this full-frame mirrorless offers high-resolution for stills shooting, impressive 8K video recording, speed and sensitivity, and connectivity for the most demanding professional workflows.

Exmor RS Stacked Sensor and BIONZ XR Processor

50.1MP Full-Frame BSI CMOS Sensor and BIONZ XR

Newly developed 50.1MP Exmor RS full-frame sensor features a stacked back-illuminated design with integrated memory that maintains high image clarity, expandable sensitivity up to ISO 102400, and a 15-stop dynamic range while also enabling fast 30 fps shooting and and phase-detection AF. The sensor also enables recording lossless compressed raw files for flexible editing during post-production while maintaining a relatively lightweight file size. Additionally, the 50.1MP resolution not only benefits stills shooters as it also offers full-frame 8.6K oversampling for 8K video recording.

A revised BIONZ XR engine greatly benefits image processing capabilities throughout the camera system, including up to 8x faster processing, greatly reduced rolling shutter, and more fluent interface and file management handling speeds.

Up to 30 fps Shooting and Updated Shutter

  • Efficient sensor design and processing enables high-speed shooting up to 30 fps at full 50.1MP resolution, with full AF and AE capabilities, when working with an electronic shutter. When working with the mechanical shutter, speeds are still kept high at 10 fps. Also, a large buffer memory permits recording up to 155 compressed raw frames, or 165 JPEGs, in one single burst at 30 fps.
  • Suiting fast-paced continuous shooting is a blackout-free viewfinder experience, which makes use of a 240 fps refresh rate for fluent eye-level viewing.
  • Updated electronic shutter offers silent, vibration-free performance and also supports anti-flicker shooting for working under fluorescent, LED, or other flicker-prone types of artificial light, even while shooting at 30 fps with 120 fps AF speeds.
  • Due to quickened readout speeds, electronic shutter flash sync is possible up to 1/200 sec. Even faster flash sync speeds are available when using the updated mechanical shutter, too, which can sync at 1/400 sec in full-frame or 1/500 secwith an APS-C crop.

8K 30p and 4K 120p Video

8K 30p and 4K 120p Support

  • Making use of the high-resolution sensor and fast processing capabilities, UHD 8K 30p XAVC HS 10-bit 4:2:0 video recording is possible using the full width of the sensor, offering 8.6K oversampling for impressive sharpness and realism. For easy handling of this high-res recording mode, low bit-rate proxy files with HD resolution can be simultaneously recorded faster for playback. Also, 8K video at 400 Mb/s can be written to a V90-rated UHS-II SD card, or 200 Mb/s to a V60 card, and 8K can be output over HDMI in 8-bit 4:2:0 format.
  • Recording up to UHD 4K is possible with frame rates up to 120p; when recording up to 60p the a1 offers full pixel readout and at 120p it uses a 10% crop. Oversampled 4K recording is also possible, via a 5.8K capture area, with a Super 35 crop. Internal 10-bit 4:2:2 sampling is also possible in all recording modes and, if recording externally via the full-size HDMI A port, 16-bit raw output is also possible from a 4.3K capture for even greater tonal reproduction and post-production flexibility.

Recording Flexibility

  • The a1 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.
  • High-speed, 120 fps recording also enables 4x and 5x slow-motion movie recording with the frame rate playback set to either 30p or 24p or, if moving down to Full HD resolution, an effective 240p frame rate is also available for even greater motion control.
  • 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 30 minutes for 8K 30p or 4K 60p videos, or recordings done at 10-bit 4:2:0.

Advanced Color Control

  • S-Cinetone can be used to deliver distinct colors and healthy-looking skin tone rendering that matches the FX9 and FX6 cameras and is based on technology from the professional Cinema Line cameras, such as the VENICE. This color profile offers natural mid-tones, soft colors, and especially well-controlled highlights.
  • Affording extensive customizable color and gamma controls, the you can adjust the gamma, black level, knee, color level, and more. Also, users can use the same S-Log2 Gamma Curve that is found on high end Sony Cinema cameras that squeezes up to 1300% more dynamic range into the video signal then traditional REC709, for increased post-production flexibility.
  • HLG (Hybrid Log-Gamma) support is also available, along with the BT.2020 color space, for recording within a wide color gamut and, in addition to S-Log2, S-Log3 is also available for producing a 15+-stop dynamic range with increased grading control in the shadow to mid-tone regions of the image.

Fast Hybrid AF System

  • Covering 92% of the image area, a Fast Hybrid AF system incorporates 759 phase-detection points along with 425 contrast-detection areas for quick and precise focusing in a variety of lighting conditions with sensitivity down to -6 EV. This focusing system is available for use in all recording modes, to benefit both video and stills applications.
  • Fast sensor readout and improved processing also enables up to 120 AF and AE calculations to be performed per second for faster, more responsive tracking and accurate results.
  • Lock onto subjects quickly using Real-time Tracking for AI-based tracking on moving subjects or touch tracking for manual selection of the subject.
  • Real-time Eye AF, suitable for both humans and animals, also ensures critical sharpness when shooting portraits.
  • Dedicated Real-time Eye AF Bird Mode lets you select the bird to be tracked and the camera will automatically detect the bird's eye and track it, regardless if the bird is in flight or still. This mode even works once a sitting bird takes flight.
  • Helping to fine-tune how the focusing system performs, seven-step AF transition speed and five-step AF subject shift sensitivity controls let you refine how quickly focus shifts from point to point and how smoothly focusing shifts occur.

Body Design and Connectivity

Tru-Finder EVF and Tilting Touchscreen LCD

  • An impressive QXGA OLED Tru-Finder EVF features a high 9.44m-dot resolution and 0.9x magnification for exceptionally bright, clear, and detailed eye-level viewing.
  • The EVF has a dedicated 240 fps High Quality+ setting for smooth motion rendering and the finder's physical design has a long 25mm eye point, 41° field of view, and features a fluorine coating on the outermost viewfinder element to benefit cleaning.
  • A 3.0" 1.44m-dot tilting screen benefits working from high and low angles. This LCD is a touchscreen, too, for intuitive shooting control and menu navigation.
  • Updated menu structure is more intuitive and complements having different workflows and settings selections for movie recording and stills shooting. The menu system also works in conjunction with the touchscreen design of the rear LCD.

Versatile and Durable Design

  • Dual memory card slots both accept either CFexpress Type A or SD-type memory cards. The dual slot design allows for flexible file saving and handling and can be configured to partition file types or can be used for overflow recording. Additionally, both of the card slots are rated to support UHS-II memory cards for faster transfer speeds.
  • Accepts the high-capacity NP-FZ100 rechargeable lithium-ion battery, which provides approximately 430 shots/90 minutes of recording per charge when using the viewfinder or 530 shots/95 minutes of recording per charge when using the rear LCD.
  • Enhanced 5.5-stop effective 5-axis SteadyShot INSIDE image stabilization system compensates for five different types of camera shake encountered during handheld shooting of stills and video. Additionally, specifically for video, there is also an Active IS mode that adds even more precise stabilization methods for even smoother footage straight out of camera.
  • 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.

Ports and Interface

  • Full-size HDMI A port offers a more reliable connection when working with external recorders.
  • A USB 3.2 Gen 1 Type-C port has been added, in addition to a micro-USB port, for faster, more reliable tethering support. The USB Type-C connection allows the camera to be charged or powered from the host power source while connected.
  • PC sync terminal for wired flash sync with strobe packs or wireless radio remotes.
  • Both 3.5mm headphone and external microphone ports facilitate greater control over audio recording.
  • 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.
  • Ethernet port supports 1000BASE-T wired LAN connection for transferring files over FTP.

Connectivity

  • Built-in Wi-Fi and NFC enables the a1 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. Also, the 5 GHz band supports 2x2 MIMO for fast communication speeds and dual antennas ensure a reliable connection.
  • Bluetooth connectivity allows for location data acquisition.
  • Ethernet port offers up to 1000BASE-T speeds 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 supports PC Remote shooting via the Wi-Fi connection or tethered by the wired USB Type-C port. An updated data transfer control also 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.

Pixel Shift Multi Shooting

This unique compositing mode allows you to achieve even greater resolution than the 50.1MP sensor affords. Working in conjunction with the sensor-shift image stabilization, this mode shifts the sensor while making 16 consecutive exposures in order to acquire approximately 199MP of information for greater color accuracy and detail than possible with a single exposure. These files can then be merged together during post-production by using the Sony Imaging software suite.

Sony A1 Specs

Imaging
Lens MountSony E
Sensor ResolutionActual: 50.5 Megapixel
Effective: 50.1 Megapixel (8640 x 5760)
Sensor Type35.9 x 24 mm (Full-Frame) CMOS
Image StabilizationSensor-Shift, 5-Axis
Built-In ND FilterNone
Capture TypeStills & Video
Exposure Control
Shutter TypeElectronic Shutter, Focal Plane Shutter
Shutter SpeedMechanical Shutter
1/8000 to 30 Seconds
in Bulb Mode
Electronic Shutter
1/32000 to 30 Seconds
1/8000 1/4 Second in Movie Mode
Bulb/Time ModeBulb Mode
ISO SensitivityPhoto
100 to 32,000 (Extended: 50 to 102,400)
Video
100 to 32,000
Metering MethodCenter-Weighted Average, Highlight Weighted, Multiple, Spot
Exposure ModesAperture Priority, Manual, Program, Shutter Priority
Exposure Compensation-5 to +5 EV (1/3 EV Steps)
Metering Range-3 to 20 EV
White Balance2500 to 9900K
Presets: Auto, Cloudy, Custom, Daylight, Flash, Fluorescent, Incandescent, Shade, Underwater
Continuous ShootingElectronic Shutter
Up to 30 fps at 50.1 MP for up to 155 Frames (Raw) / 165 Frames (JPEG)
Up to 20 fps at 50.1 MP for up to 238 Frames (Raw) / 400 Frames (JPEG)
Up to 15 fps at 50.1 MP
Up to 5 fps at 50.1 MP
Mechanical Shutter
Up to 10 fps at 50.1 MP (Raw) / (JPEG)
Up to 8 fps at 50.1 MP
Up to 6 fps at 50.1 MP
Up to 3 fps at 50.1 MP
Interval RecordingYes
Self-Timer2/5/10-Second Delay
Still Image Capture
Image Sizes16:9
42 MP (8760 x 4864)
4:3
44.2 MP (7680 x 5760)
18.6 MP (4992 x 3744)
11 MP (3840 x 2880)
3:2
49.7 MP (8640 x 5760)
21 MP (5616 x 3744)
12.4 MP (4320 x 2880)
1:1
44.2 MP (5760 x 5760)
14 MP (3744 x 3744)
8.2 MP (2880 x 2880)
Aspect Ratio1:1, 3:2, 4:3, 16:9
Image File FormatJPEG, Raw, HEIF
Bit Depth14-Bit
Internal Video Capture
Recording ModesH.265/XAVC HS 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p/100p/119.88p [50 to 280 Mb/s]
H.265/XAVC HS 4:2:0 10-Bit
UHD 8K (7680 x 4320) at 23.98p/25p/29.97p [200 to 400 Mb/s]
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p/100p/119.88p [30 to 200 Mb/s]
H.264/XAVC S-I 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p [240 to 600 Mb/s]
Full HD (1920 x 1080) at 23.98p/25p/29.97p/50p/59.94p [89 to 222 Mb/s]
H.264/XAVC S 4:2:2 10-Bit
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p/100p/119.88p [100 to 280 Mb/s]
Full HD (1920 x 1080) at 23.98p/25p/29.97p/50p/59.94p/100p/119.88p/200p/239.76p [50 Mb/s]
H.264/XAVC S 4:2:0 8-Bit
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p/100p/119.88p [60 to 200 Mb/s]
Full HD (1920 x 1080) at 23.98p/25p/29.97p/50p/59.94p/100p/119.88p/200p/239.76p [16 to 100 Mb/s]
Sensor Crop ModesSuper35 / APS-C
4K (3840 x 2160)
1080p (1920 x 1080)
Gamma CurveHDR-HLG, Sony S-Log 2, Sony S-Log 3
Recording LimitUnlimited
Video SystemNTSC/PAL
Built-In Microphone TypeStereo
Audio Recording2-Channel 16-Bit 48 kHz LPCM Audio
2/4-Channel 24-Bit 48 kHz LPCM Audio
2-Channel AAC Audio
External Video Capture
Raw OutputHDMI In Raw Mode:
4332 x 2248 16-Bit at 59.94 fps 
External Recording Modes4:2:2 10-Bit via HDMI
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p
Full HD (1920 x 1080) at 23.98p/50p/59.94p
Full HD (1920 x 1080) at 50i/59.94i
4:2:0 8-Bit via HDMI
UHD 8K (7680 x 4320) at 29.97p
UHD 4K (3840 x 2160) at 23.98p/25p/29.97p/50p/59.94p
Full HD (1920 x 1080) at 23.98p/50p/59.94p
Full HD (1920 x 1080) at 50i/59.94i
IP StreamingNone
Interface
Media/Memory Card SlotDual Slot: CFexpress Type A / SD (UHS-II)
Video I/O1 x 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
Other I/O1 x USB Type-C Data Output (Shared with Power Input)
1 x PC Sync Socket Output
1 x RJ45
1 x Sony Multi/USB Micro-B
Power I/O1 x USB Type-C Input
Wireless2.4 / 5 GHz Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n), Wi-Fi (802.11b/g) Control
Bluetooth
Global Positioning (GPS, GLONASS, etc.)None
Monitor
Size3.0"
Resolution1,440,000 Dot
Display TypeTilting Touchscreen LCD
Viewfinder
TypeBuilt-In Electronic (OLED)
Size0.64"
Resolution9,437,184 Dot
Eye Point25 mm
Coverage100%
MagnificationApprox. 0.9x
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: 759
Contrast Detection: 425
Autofocus Sensitivity-4 to +20 EV
Flash
Built-In FlashNo
Flash ModesAuto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync
Maximum Sync Speed1/400 Second
Flash Compensation-3 to +3 EV (1/3, 1/2 EV Steps)
Dedicated Flash SystemTTL
External Flash ConnectionHot Shoe
Environmental
Operating Temperature32 to 104°F / 0 to 40°C
General
Battery Type1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 430 Shots)
Power Consumption≤6.8 W
Tripod Mounting Thread1 x 1/4"-20 Female (Bottom)
Accessory Mount1 x Intelligent Hot Shoe on Camera Body
Material of ConstructionMagnesium Alloy
Dimensions (W x H x D)5.07 x 3.81 x 2.74" / 128.9 x 96.9 x 69.7 mm
Weight1.6 lb / 737 g (Body Only)
Packaging Info
Package Weight3.22 lb
Box Dimensions (LxWxH)11.8 x 6.3 x 5.4"

Sony A1 Reviews

Incredible camera

By John
Rated 5 out of 5
Date: 2022-05-24

Incredible camera

This is my second A1!

By Brian
Rated 5 out of 5
Date: 2022-05-14

I love this camera. Great for birds in flight and everything else.

A1 camera

By Dean
Rated 4 out of 5
Date: 2022-05-13

If you have great light at your back this camera body will perform wonderfully. If not, hit rate plummets. For BIF with sun at my back will get 80% tack sharp images. For example, 20 of 25 in a sequence can look tack sharp. Low light or shade at lower shutter speeds, sharp images drop to 15%. Did not expect it to be perfect, and its not. Bird eye tracking works well even in overcast and shade. But, sharpness drops without good light at your back. Great light = great results. A7r4 works better in lower light, A1 the bomb in great light.

Best Current Mirrorless SLR

By Tim
Rated 5 out of 5
Date: 2022-05-02

I have worked with three modern mirrorless hi-res cameras: the Canon R5, the Leica SL2, and now the Sony A1. IMO, the Sony is the best of these. The images are great, of course, but so are those from the Canon and the Leica. For me it comes down to feel and usability. It's odd, in a way, because I don't shoot sports nor wildlife, so I don't really need some of the gee-whiz features of this camera, like quick accurate focus, up to 30 fps, and so on. I mostly shoot landscape and architecture. And no video, at least yet, but this camera will get me into it, I'm sure. It's a feature-rich camera, but the extensive menu system I have found fairly easy to use. Another plus, perhaps not important to some, is that the manual is really good. Thorough and well-organized. I am a retired technical writer, so I can make that judgement. Totally happy, and also very pleased with the Sony G lenses.

An Absolute Beast

By Jeffrey
Rated 5 out of 5
Date: 2022-04-08

Bought this for a lot of reasons, but one primary one was for use in Africa. Took it on safari and it exceeded all expectations. The image quality is excellent, which I would have expected. It's tracking though was far better than I expected. It tracked flying birds, jumping cheetahs, lions coming towards us, etc. The eye tracking is very good, although I would say it has some flaws. It couldn't track an elephant's eye, but who cares - they don't move fast and the eyes are blobs (which I'm sure is the problem). Side profiles can be an issue - it needs a clear view of the eye to lock on. But when it doesn't find the eye, it locks on to the subject and tracks it perfectly. On lions, other big cats and birds the eye tracking was pretty flawless. I tracked a cheetah jumping across water, and got 20 frames perfectly sharp. Like with all Sony's (I've had the a7r IV, a9, and a7s III) it is very customizable. I programmed the AEL button for action, so just pressed it when a bird was about to fly, or a cat about to run or jump. I programmed the center wheel button to toggle between types of eyes (human, animal, bird). I programmed certain playback options like seeing the focus point or rating the image so I could easily find it later. There were lots of other customizations but those are some examples. I thought 30fps might be overkill but it was so useful. If you take just the cheetah example, I had 20 frames to choose from for a single jump, and got a perfect power pose (photo is posted with this). 50mp is great too - both for cropping and large prints. Absolutely fantastic. I sold my a9 as soon as I got home (great camera, but doesn't compare to this).

Dream Camera!!!!

By Robert
Rated 5 out of 5
Date: 2022-04-07

Moved from Canon R6 (good camera) to the Sony Alpha 1. Wow!! It is the best for EVERYTHING and every situation

Super Responsive

By Karen
Rated 5 out of 5
Date: 2022-05-18

I started my mirrorless journey last fall with the Sony A7riv. While that camera is fantastic, I felt it lacked a little bit in wildlife photography. Enter the A1. What an incredibly responsive camera this is! The focus is noticably quicker and I rarely miss a shot now. The eye tracking is phenomenal, even on a black bird with black eyes. I love how Sony has made it's cameras so easy to customize too. I already have muscle-memory for most of my customized buttons. Sony has knocked it out of the park with the A1.

wonderful camera

By John
Rated 5 out of 5
Date: 2022-05-17

wonderful camera

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