Nikon has outfitted the D810A with different gimmicks to make astrophotography a little simpler. The device has a new Long Exposure Manual Mode that allows for shutter spends to be set from 4 seconds to 15 minutes. Bulb is also embedded, keeping the shutter open provided that the button is depressed. Signal to-noise has been upgraded to convey better low light/high ISO execution inside the gadget’s local ISO scope of 200-12,800, which can be expanded by three f-stops to ISO 100, 25,600 and 51,200. Also the D810A will come with Nikon’s free Capture NX-D picture- processing gear that will be added another Astro Noise Reduction option.
The D810A’s infrared (IR) filter has been adjusted to enable the H-alpha (Hydrogen-alpha) wavelength to reach the sensor. In this way, the D810A can capture a deeper red from cosmic objects that emanate the 656nm wavelength of light.
Nikon reports that the D810A has four times more responsiveness to the 656nm spectral line than the D810, which is uplifting news for night sky photo shooters. But, this special filter requires that the D810A stay pointed at the night sky, since color images for general photography won’t be as high-def as the D810’s. This is applies mostly to reds, blues and purples.
A Virtual Exposure Preview Mode, which reproduces a 30-second exposure in Live View with a more luminous picture preview, enables users to more precisely compose and center. What’s more, a red-light virtual skyline marker won’t meddle with users’ ability to see during night time.
Astrophotography is obviously not for everybody but the D810A makes photographing those remote cosmic events a bit less overwhelming. This is Nikon’s first attack on astrophotography. Cannon has had a few cams, like the 60Da propelled in 2012, created particularly for astrophotography. However, the 60Da is designed around an APS-C sized sensor. With Nikon’s full, 36-megapixel sensor, more up to date tech and enhanced light sensitivity, the D810A will unquestionably drum up a buzz.
Image Source: DIY Photography