Difference between the Nikon D810A and Nikon D800 – Nikon D810A is the camera is around four times (4X) more sensitive to long-wavelength red light than an ordinary DSLR aka Nikon D810. This can be achieved through more precise and modified IR-cut filter, the modification enables the camera to capture the Hydrogen Alpha spectral line (656nm). As we already know that clouds of Hydrogen gas that occur in emission nebulae, this modification may result a slight reddish ting while shooting ordinary images with Nikon D810A DSLR.
New Features – The Nikon D810A arrived with Long Exposure M mode that enables users to select a very wide range of shutter speed 4 to 900 sec (15 minutes), the camera also features a ‘astro noise reduction’ in Raw that keeps noise minimum while shooting stars.
Image Comparison between the Nikon D810A and Nikon D810 DSLR
