[25][26] If bright spots still appear in images after servicing, Nikon recommends enabling Long exposure NR.

[28][29] The D810A's IR filter is optimized for H-alpha (Hα) red tones, resulting in four times greater sensitivity to the 656 nm wavelength than the D810.

Nikon published an D810A astrophotography guide that recommends live view focusing with 23× enlarged selected areas[32] and a gallery showing the mostly small effects to the color reproduction in "normal" photos.

[33] A review concludes that especially the D810A long exposure noise is superior compared to the D800E and other Nikon fullframes, and shows effects of the increased H-alpha sensitivity.

Color balance of "normal" photos seems mostly correct, except comparatively hotter objects with strong infrared radiation and a bit more purple in sunsets.