Extreme resolution meets extreme speed. When Nikon introduced the D800 and D800E, it set a new benchmark for DSLR image quality and super high resolution photography that approached medium format. Now, five years later, Nikon proudly introduces the next evolution in high resolution DSLRs, a camera that allows photographers to capture fast action in 45.7 megapixels of brilliant resolution. With remarkable advancements across the board - sensor design, auto focus, dynamic range, sensitivity, Speed light control, battery life, shutter and mirror drive mechanisms, Silent Photography in Live-View mode, focus shift capability and more. This is quite possibly the most impressive, well-rounded DSLR yet. GPS: GP-1 GPS Unit, GP-1A GPS unit. Operating Environment Temperature- 32 to 104 degree Fahrenheit (0 to 40 degree Celsius Humidity- Less than 85% (no condensation).