Main
Model
Price
Advantages
launch
Announced
Body type
Camera subcategory
Sensor
Effective pixels
Max resolution
Sensor size
Sensor type
Processor
Image ratio w:h
Other resolutions
Sensor photo detectors
Image
ISO
White balance presets
Custom white balance
Image stabilization
Uncompressed format
JPEG quality levels
Boosted ISO (minimum)
Boosted ISO (maximum)
Image stabilization notes
Photography features
Minimum shutter speed
Maximum shutter speed
Aperture priority
Shutter priority
Manual exposure mode
Subject / scene modes
Built-in flash
Flash range
External flash
Flash modes
Continuous drive
Self-timer
Metering modes
Exposure compensation
WB Bracketing
Maximum shutter speed (electronic)
AE Bracketing
Screen / viewfinder
Articulated LCD
Screen size
Screen dots
Touch screen
Screen type
Live view
Viewfinder type
Viewfinder coverage
Viewfinder magnification
Viewfinder resolution
Videography features
Resolutions
File Format
Microphone
Speaker
Optics & Focus
Autofocus
Digital zoom
Manual focus
Number of focus points
Lens mount
Focal length multiplier
Physical
Weight (inc. batteries)
Dimensions
Environmentally sealed
Battery
Battery details
Battery Life (CIPA)
Storage
Storage types
Connectivity
USB
HDMI
Microphone port
Headphone port
Wireless
Wireless notes
Remote control
Other features
Orientation sensor
Timelapse recording
GPS
Samples
Videos
Main
Model
Price
Advantages
PHOTOGRAPHY FEATURES Subject / scene modes: Yes
PHOTOGRAPHY FEATURES Built-in flash: Yes (Pop-up)
SCREEN / VIEWFINDER Viewfinder type: Optical (pentamirror)
PHYSICAL Weight (inc. batteries): 395 g (0.87 lb / 13.93 oz)
PHYSICAL Battery Life (CIPA): 1200
Main
Model
Price
Advantages
SENSOR Sensor size: Full frame (35.6 x 23.8 mm)
SENSOR Sensor photo detectors: 28 megapixels
IMAGE ISO: Auto, ISO 100-51200 (expands to 50-204800)
IMAGE Image stabilization: Sensor-shift
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES Continuous drive: 20.0 fps
PHOTOGRAPHY FEATURES WB Bracketing: Yes (3 frames, H/L selectable)
SCREEN / VIEWFINDER Articulated LCD: Tilting
SCREEN / VIEWFINDER Screen dots: 1,440,000
SCREEN / VIEWFINDER Touch screen: Yes
VIDEOGRAPHY FEATURES Microphone: Stereo
OPTICS & FOCUS Number of focus points: 693
CONNECTIVITY Microphone port: Yes
Summary
The Sony Alpha a9 is equipped with bigger sensor than the Nikon D3400: Full frame (35.6 x 23.8 mm) versus APS-C (23.5 x 15.6 mm). This is the most important difference between these cameras as large sensor allows the photographer to shoot pictures of the higher quality. The Sony Alpha a9 has a wider ISO range of 100-51200 than 100-25600 ISO range of the Nikon D3400. This ISO range let the camera owner to shoot good quality pictures in low light conditions. The Sony Alpha a9 provides image stabilization that will help the camera owner to shoot sharp images of non-moving objects in low light when the camera owner is not using the flash. The Sony Alpha a9 offers more number of focus points than the Nikon D3400: 693 vs 11. More number of focus points means more convenience when attempting to focus on objects that are not centred.
The Sony Alpha a9 has tilting display that will let the photographer to make amazing selfie photos. The Sony Alpha a9 display is better as it has more number of screen dots 1,440,000 in comparison to 921,000 dots of the Nikon D3400 screen. The higher dot count display is better for reviewing pictures on your camera. The Sony Alpha a9 is produced with a touch screen.
The Nikon D3400 is produced with built-in flash. The Nikon D3400 battery life is better in compare to the Sony Alpha a9 battery life. In accordance with CIPA standards the camera owner will be able to capture 1200 shots with the D3400 and only 650 with the Alpha a9. The D3400 weighs 395g that is 278g lighter in comparison with the weight of the Sony Alpha a9.
Taking into account the above-mentioned differences the Alpha a9 will become the best choice. Check the lowest price on Amazon