Nikon has announced its first full-frame astrophotography-specific camera, the D810A, which features a modified infrared cut filter for the hydrogen alpha wavelength.
Two views of the new Nikon D810A. (Source: Nikon.)
Designed for dedicated astrophotography hobbyists, the D810A features a 36.3-megapixel Nikon FX-format CMOS sensor built without an optical low-pass filterand an EXPEED 4 image-processing engine. Its optical IR cut filter has been modified to increase the transmission of H-alpha spectral line by approximately four times from a typical DSLR to allow detailed shots of nebulae, constellations and other celestial objects to be captured with a high signal-to-noise ratio. A special long exposure Manual (M*) mode enables the shutter speed to be set up to 900 seconds. A live view preview function displays a brighter, clearer preview image when the shutter speed is set at 30 seconds or longer, enabling easier focusing and framing adjustment.
When using the CH or CL release mode with a shutter speed 4 seconds or longer, the duration of continuous shooting can be extended indefinitely, as long as memory card capacity and battery status permit. Astrophotographers can also capture action with cinematic quality, time-lapse video. The new camera’s shutter mechanism has been tested for 200,000 cycles and the camera is sealed against dust and water droplets.
Accessories include a remote cord for remote shutter release, battery pack for longer battery life and uninterrupted captures and a GPS unit which enables the recording of latitude, longitude, altitude, and Coordinated Universal Time (UTC) where photos were taken. The new Picture Control system is also supported by the D810A and users can utilise the free Capture NX-D software application to process and adjust RAW images.
The D810A is due for release locally on 28 May, 2015. Details can be found at https://www.mynikonlife.com.au/d810.
