Specifically designed for those looking to photograph the night sky, the Nikon D810A DSLR is a modified version of the D810 and features an optical IR cut filter for photographing distant nebulae and other astronomical phenomena with utmost clarity and color accuracy. By updating the D810's design with a dedicated filter to pass H-alpha (656.28nm) wavelengths, the D810A is able to depict nebulae and other subjects without unwanted infrared contamination for greater color neutrality. Benefitting this adjustment to the sensor filtration, this specialized DSLR also features an expanded shutter speed range and new M* exposure mode for more accurate exposure times up to 15 minutes, as well as a Virtual Live View Exposure Preview feature to aid in clear focus and composition confirmation when making such long exposures. Beyond these few but notable distinctions, the D810A and D810 feature the same set of core features to produce high resolution, well-detailed imagery.