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Main
Model
Price
Advantages
PHOTOGRAPHY FEATURES Built-in flash: Yes
SCREEN / VIEWFINDER Screen size: 3.2″
SCREEN / VIEWFINDER Screen dots: 1,229,000
OPTICS & FOCUS Number of focus points: 51
PHYSICAL Weight (inc. batteries): 750 g (1.65 lb / 26.46 oz)
PHYSICAL Battery Life (CIPA): 1230
Main
Model
Price
Advantages
SENSOR Effective pixels: 26 megapixels
SENSOR Max resolution: 6240 x 4160
SENSOR Sensor photo detectors: 27 megapixels
IMAGE ISO: Auto, 100-40000 (expands to 50-102400)
IMAGE Boosted ISO (maximum): 102400
SCREEN / VIEWFINDER Touch screen: Yes
Summary
The Canon EOS 6D Mark II highest resolution of 6240 x 4160 pixels (26 megapixels) is better in comparison with the D750 maximum resolution of 6016 x 4016 pixels (24 megapixels). The Canon EOS 6D Mark II has a wider ISO range of 100-40000 than 100-12800 ISO range of the D750. This ISO numbers allow you to take better photos in low light situations. The D750 offers more focus points than the Canon EOS 6D Mark II: 51 vs 45. More focus points means less risk of losing focus lock while tracking a moving object.
The D750 screen is better as it has more screen dots 1,229,000 in compare to 1,040,000 dots of the Canon EOS 6D Mark II screen. The higher dot count screen is better for reviewing images on your camera. The D750 is produced with bigger size of the screen - 3 inches. The EOS 6D Mark II is produced with a touch screen.
The D750 is produced with built-in flash. The D750 battery life is better than the Canon EOS 6D Mark II battery life. According to CIPA standards the photographer will be able to take 1230 photos with the D750 and only 1200 with the EOS 6D Mark II. The Nikon D750 weighs 750g which is 15g less in comparison with the weight of the EOS 6D Mark II.
The D750 and the Canon EOS 6D Mark II have the same number of pros but as the EOS 6D Mark II has better highest resolution that is a really important advantage then it becomes the best buy.