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Main
Model
Price
Advantages
SENSOR Sensor size: Full frame (35.9 x 24 mm)
IMAGE White balance presets: 12
PHOTOGRAPHY FEATURES Subject / scene modes: Yes
PHOTOGRAPHY FEATURES Built-in flash: Yes
SCREEN / VIEWFINDER Screen size: 3.2″
SCREEN / VIEWFINDER Viewfinder type: Optical (pentaprism)
PHYSICAL Battery Life (CIPA): 1230
Main
Model
Price
Advantages
SENSOR Sensor photo detectors: 28 megapixels
IMAGE ISO: Auto, ISO 100-51200 (expands to 50-204800)
IMAGE Boosted ISO (maximum): 204800
IMAGE Image stabilization: Sensor-shift
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES Continuous drive: 20.0 fps
SCREEN / VIEWFINDER Screen dots: 1,440,000
SCREEN / VIEWFINDER Touch screen: Yes
OPTICS & FOCUS Number of focus points: 693
PHYSICAL Weight (inc. batteries): 673 g (1.48 lb / 23.74 oz)
Summary
The Nikon D750 has bigger sensor than the Sony Alpha a9: Full frame (35.9 x 24 mm) versus Full frame (35.6 x 23.8 mm). It is very significant difference between these models as large sensor lets you to produce pictures of the better quality. The Sony Alpha a9 offers a wider ISO range of 100-51200 in compare with 100-12800 ISO range of the Nikon D750. This ISO numbers allow the camera owner to produce good quality pictures in low light conditions. The Nikon D750 has more presets of white balance - 12. It gives you more control over colour. The Sony Alpha a9 has image stabilization that will help the photographer to produce sharp photos when using lenses with long focal lengths. The Sony Alpha a9 provides more number of focus points in compare with the Nikon D750: 693 vs 51. More focus points means more convenience when attempting to focus on subjects that are not centred.
The Sony Alpha a9 display is better as it offers more number of screen dots 1,440,000 in compare to 1,229,000 dots of the Nikon D750 screen. The higher dot count display is better for reviewing images on your camera. The Nikon D750 is produced with bigger size of the display - 3 inches. The Alpha a9 is equipped with a touch screen.
The Nikon D750 is equipped with built-in flash. The Nikon D750 battery life is better than the Sony Alpha a9 battery life. In accordance with CIPA standards the photographer will be able to take 1230 photos with the D750 and only 650 with the Alpha a9. The Alpha a9 weighs 673g that is 77g lighter than the weight of the Nikon D750.
The Sony Alpha a9 has 10 advantages and the Nikon D750 only 7 so the Alpha a9 will be the best choice. Get the list of the best offers on Amazon