Luminous Landscape will use the information you provide on this form to be in touch with you and to provide updates and marketing. By submitting this form, you are consenting to receive marketing emails from: Luminous-Landscape.com, 1060 North Capitol Ave., Suite C-375, Indianapolis, IN, 46204 United States, You can revoke your consent to receive emails at any time by using the SafeUnsubscribe SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact. In May of 2015 Nikon provided me with their brand new D810A to give it a workout for landscape astrophotography. Logo apple inc. I wrote an article for their, and this is my personal review of the camera The Short Answer In my experience the D810A matches the high ISO performance of the D750.
Nikon D810A DSLR User Manual, Instruction Manual, User Guide (PDF) Free Download Nikon D810A PDF User Manual, User Guide, Instructions, Nikon D810A Owner's Manual. Nikon D810A DSLR is is a modified version of the D810 optimized for astrophotography and other scientific applications.
The D750 has a 24MP sensor and until the D810A came out it was the cleanest high megapixel DSLR, about a stop better than the D810. But the D810A, like the D800/D800E/D810, has a 36MP sensor and appears to have the same high ISO performance of the 24MP D750. With some other nice features, the D810A is an amazing landscape astrophotography camera although there are some gotchas caused by the IR filter.
The Long Answer Read on! Monument Cove Nikon D810A Nikon 14-24mm f/2.8 lens Sky: Star stacked from 10 x 10s f/2.8 ISO 12800 Foreground: Multiple exposures at ISO 1600 f/2.8 15 minutes ISO 12800 Comparison For shooting landscape astrophotography when you’re not using a star tracker or star stacking (see Star Stacking section below) for pinpoint stars and lower noise, you want to use the highest ISO possible with your camera that produces a useful image when taking your sky exposures.
(I take separate exposures for the sky and foreground at different ISOs and blend them to get the best depth of field and a cleaner foreground.) Generally speaking, a more brightly exposed shot with a high ISO will be cleaner than an underexposed shot with a lower ISO, even if the difference is only 1 exposure stop (half the brightness). Boosting the exposure in post of the lower ISO image to match the higher ISO image may show a similar result, but upon close inspection there is often a distinct difference, with the higher ISO shot having less noise. This is a result of an increased signal in the higher ISO shots, the noise floor is closer to the exposure in the lower ISO shots and thus you end up with more visible noise after boosting the exposure in post. This result will depend on your camera. Test various ISOs for your use. For my tests with the D810A, D810, and D750, I used my Nikon 14-24mm f/2.8 lens @ 14mm and f/2.8 with a 25 second shutter time for all ISO test shots.
You need to chose a low enough shutter time to limit star trails, and when not star stacking, I prefer to use 25 seconds when shooting at 14mm. I find this results in acceptable star trails while still getting a bright enough exposure.
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I chose to use ISO 12800 for my primary tests because it is the highest native ISO of all 3 cameras. And since, in my experience, a 25 second ISO 12800 exposure will be cleaner than a dark 25 second ISO 3200 exposure, I have been using ISO 12800 for most of my sky shots while testing the D810A. I even used ISO 12800 for panoramas without using a lower ISO for the foreground.
With enough balancing of noise reduction and sharpening, the foreground can work out amazingly well. Here are the ISO 12800 shots from each camera. Note that the raw NEF files for all shots in this article were processed with Capture NX-D 1.2.1. At the time of this writing, Capture NX-D is the only raw editor capable of reading D810A files.
My usual raw editor is Adobe Lightroom. Nikon D810A, Nikon 14-24mm f/2.8 lens, ISO 12800, 25 seconds, 14mm, f/2.8 Nikon D810, Nikon 14-24mm f/2.8 lens, ISO 12800, 25 seconds, 14mm, f/2.8 Nikon D750, Nikon 14-24mm f/2.8 lens, ISO 12800, 25 seconds, 14mm, f/2.8 Now lets take a look at 100% crops from each camera.
Note that there has been NO noise reduction whatsoever applied to these images. Noise reduction in Capture NX-D was not used. Realistically, you would at least apply some color noise reduction. If you use Lightroom, color noise reduction is always enabled by default. For a fun experiment, go find a high ISO, say 6400 or so, raw image in Lightroom, zoom into 100%, and turn the color noise reduction slider to 0 and watch how splotchy the image becomes. Nikon D810A, 100% crop, no noise reduction Nikon D810, 100% crop, no noise reduction Nikon D750, 100% crop, no noise reduction As you can see, the D810A and D750 are pretty close in noise, although the D810A has more color in the sky.