Conclusions and verdict
The D750 does lack a few features. Some of these are compromises inherent in a DSLR at its price point; others are stranger.
The first and most obvious omission is the lack of any 4K video mode, internally or externally. The Panasonic GH4 has internal and external 4K recording. The Sony A7s has external 4K, and the A7sII, internal and external recording. However, both are mirrorless designs, which might not suit everyone when it comes to stills photography.
the main reason to buy the D750 is because is an exceptional stills camera, as well as a very good video camera
Adding 4K to a full-frame sensor camera is not easy, and the D750 may well be better without it; the GH4 and especially, the A7s, are lower-resolution cameras. This makes adding 4K less of a challenge, but at the expense of stills photo performance.
The Sony and Panasonic also have better audio recording options, in the form of the YAGH expansion chassis for the GH4, and a number of MI smart shoe interfaces for the A7s. D750 owners will need to rely on external audio gear, and the D750’s single 3.5mm jack input for sound. Nor is there a version of the camera with unlimited internal recording times, along the lines of the Panasonic GH4R.
Nikon has also added exposure zebras but no focus peaking to the D750, something the A7s and GH4 both feature.
Most of these limitations – except for 4K recording – can be overcome with accessories. The main advantages, including dual internal and external recording, the tilting screen, and very clean video capture, are built in.
But the main reason to buy the D750 is because is an exceptional stills camera, as well as a very good video camera.
Mirrorless cameras might be challenging the DSLR concept. Neither Nikon’s mirrorless rivals, nor any of the current crop of 4K cameras can match the D750’s combination of stills resolution and a full frame sensor.
This makes it a standout choice both for film makers who take stills, and stills photographers looking to make a move into video.
The D750 costs around £1400 including VAT in the UK, and $2000 (excluding tax) in the US.