It could be since the camera has a slightly lower resolution giving the sensor the capability to gather more light.
D750 vs d810 low light.
It scores camera sensors for color depth dxo portrait dynamic range dxo landscape and low light sensitivity dxo sports and also gives them an overall score.
The d750 is smaller lighter less expensive and the best choice for most reasonable people.
Nikon d750 and nikon d810 sensors have been tested by dxo and the results show that d810 has a better overall score of 97 4 points higher compared to d750 s score of 93.
The d810 will most likely hold its dynamic range crown with its impressive performance at iso 64 and its pixel level sharpness will be superior thanks to the omission of the optical low pass filter olpf.
D810 high iso low light shootout.
At high iso levels the camera produces images with far less noise than the d810.
This does not mean the nikon d810 performs badly in low light and in the end the difference is not that significant.
For weddings i have the d750 as my primary body and the d810 as my 2ry.
The performance is impressive that you can even print your images and still get a decent one.
The d750 is faster and faster to use.
It seems that the d750 is built for low light shooting.
And the back side illuminated sensor should improve low light performance which is obviously key for night photographers.
Given its price it comes as a surprise that the nikon d750 produces better results in low light than its more expensive sibling.
But when it comes to low light shooting like weddings it falls behind in terms of focus acquisition and providing clean images at iso over 1600.
Its not just the amount of noise but the quality of the noise which tends to be patchy and discolored.
In the video above heather lahtinen compares iso performance of the nikon d750 and nikon d850.