Key Features
Apr 19 2017
Announced
24 megapixels
Resolution
| Brand | Sony |
| Sensor Type | Full frame |
| Sensor | Stacked BSI-CMOS |
| Weight | 673g |
| MSRP | $4499USD |
Other similar cameras
Sony Alpha A9 II
Released Oct 03 2019 | 24MP resolution
Sony Alpha A7 III
Released Feb 27 2018 | 24MP resolution
Sony Alpha A7 IV
Released Oct 21 2021 | 33MP resolution
Overview of the Alpha A9
The Sony Alpha A9 is a game-changer in the world of photography. This camera is designed to meet the needs of the most demanding professional photographers. Its advanced autofocus system, high-speed shooting, and unparalleled image quality make it an ideal choice for capturing both stills and videos. If you are looking for a camera that can deliver stunning results even in challenging conditions, then the Sony Alpha A9 is definitely worth considering. In this blog post, we will take a closer look at the features that make this camera stand out. We will also explore some of the key benefits of using the Sony Alpha A9 for your photography needs. So, let's get started!
The Sony Alpha Series Lineup
Sony Alpha A9
Released Apr 19 2017 | 24MP resolution
Sony Alpha A9 II
Released Oct 03 2019 | 24MP resolution
Sony Alpha A9 Pros and Cons
Now, we will look more closely at our review of the Sony Alpha A9 camera. We will see what it can do and compare it to other cameras like it. We will tell you what's good about it and what's not so good. This way, you'll know if it's the camera for you!
Pros
Cons
Build and Construction
Body and dimensions
Sony Alpha A9
| Weather sealed | |
| Dimensions | 127 x 96 x 63mm |
| Weight | 673g |
| Thickness | 63mm |
Weather Sealing
The Sony Alpha A9 camera is equipped with environmental seals that make it resistant to weather, preventing water and dust from entering the camera. If you enjoy outdoor photography and need a camera that can handle extreme conditions, the Alpha A9 is an excellent choice.
Design and Handling
Main design features
| View Finder | Electronic |
| Screen Type | Tilting |
| Screen Resolution | 1,440k dots |
| Body type | SLR-style mirrorless |
Suitable for:
| Photography | Above Avg. |
| Videography | Above Avg. |
| Travel | Above Avg. |
LCD Screen
This camera has a tilting 3.00" screen, with a display resolution of 1,440k dots. This makes the Sony Alpha A9 not as suitable for those looking for a vlogging camera as you cannot view yourself while shooting selfies easily. The camera also features a touch screen, which adds to its ease of use.
Viewfinder
Alpha A9 includes a electronic viewfinder with 3,686k dots of resolution with a coverage of 100% and a magnification of 0.78x. This feature enhances the camera's suitability for outdoor photography in bright conditions.
Image Quality
Sony Alpha A9 has a 24MP sized Stacked BSI-CMOS sensor. You can shoot at maximum resolution of 24 pixels. Sony Alpha A9 has a native ISO range of 100 - 51200 which can be boosted to 50 - 204800. It can also save files in RAW format which gives you a wider room for post processing.
Key Features
Apr 19 2017
Announced
100 - 51200
ISO Range
| Sensor | Full frame |
| Extended ISO | 50 - 204800 |
| Max resolution | 6000 x 4000 pixels |
DXO Sensor Scores
Overall
92 / 102
Color Depth
24.9 / 26.5
Dynamic Range
13.3 / 14.8
Low Light ISO
3517 / 4505
DXO mark sensor scores
The DXOmark rankings indicate that the Sony Alpha A9 camera has excellent color depth performance, which refers to the number of colors the sensor can distinguish. Additionally, its dynamic range is also above average, allowing it to retain medium amounts of details in both bright and dark areas of a scene. The camera's low light ISO performance is average, which is an important factor to consider if you plan to use it in dimly lit indoor environments or at night. Overall the image quality of the Alpha A9 is excellent
Crop Factor
Camera crop factor (or focal length multiplier) refers to how a camera's sensor size affects the apparent field of view of a lens. Crop factor is determined by comparing the size of a camera's sensor to that of a full-frame sensor, which is a standard reference size for camera sensors.
Size comparison
Crop factor calculator
Crop factor
1x
Full frame equivalent
24mm
This camera: Full frame
24mm
Connectivity, storage, battery
| Storage | Dual SD/SDHC/SDXC slots (UHS-II compatible) |
| Battery Life | 650 shots |
| Battery Model | NP-FZ100 |
| HDMI | |
| USD | |
| Wireless Connectivity |
Storage
The Sony Alpha A9 supports Dual SD/SDHC/SDXC slots (UHS-II compatible) with 2 slots for storage. Having dual SD card slots on the Sony Alpha A9 is highly advantageous as it mitigates the risk of losing footage due to memory card malfunctions. This feature is particularly beneficial for wedding photography and other professional settings.
Battery
The Sony Alpha A9 uses the NP-FZ100 model of battery pack. This is rated for 650 shots shots which is high. If you intend to take photos or record videos for an extended period, it might be a good idea to bring along additional batteries.
Photography Features
Flash
The Sony Alpha A9 does not have a built-in flash, but it does offer a flash shoe that allows you to attach external flashes. This provides more versatility in your lighting choices.
Shutter
The Sony Alpha A9 boasts a maximum mechanical shutter speed of 1/8000s, which is ideal for shooting fast-moving subjects in bright environments, such as in sports photography. Faster shutter speeds enable you to freeze the action and capture every detail, making it easier to get the perfect shot.
With a continuous mechanical shutter speed of n/a or an electronic shutter speed of n/a, this camera is not capable of capturing the perfect moment more easily, making it not as suited for wedding, sports, and wildlife photography. Higher shutter speeds make it easier to capture fast-paced action, ensuring that you never miss the perfect shot.
Autofocus
The Sony Alpha A9 includes two autofocus (AF) systems: contrast detection and phase detection, with 693 number of focus points.
While contrast detection is generally more accurate and precise, phase detection autofocus is faster and more effective in most situations, particularly when photographing moving subjects.
Phase detection autofocus works by dividing the incoming light into pairs and then analyzing how they intersect on the camera's sensor. This method allows the camera to determine not only if a subject is in focus but also the direction and distance needed to adjust the focus to achieve perfect sharpness.
On the other hand, contrast detection autofocus works by analyzing the contrast of an image and adjusting the focus until the highest contrast is detected. While this method is very accurate, it can be slow, especially in low light conditions or when photographing moving subjects.
FAQ
The Sony Alpha A9 features a Stacked BSI-CMOS sensor
Yes the Alpha A9 does have weather sealing.
The Sony Alpha A9 was announced on Apr 19 2017
Yes the Alpha A9 does have in-body image stabilization that can compensate for camera shake, making it easier to shoot handheld in low light conditions.
The Alpha A9 has a native ISO range of 100-51200, which can be expanded to ISO 50-204800 for even greater sensitivity in low light conditions.
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