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Nikon D810a v D850 Single Noise Evaluation

Nikon D850 v Nikon D810a 

So I was lucky enough to get my hands on a Nikon D850 for a couple of hours and during that time I didn't really get to test it out nightscape wise, with a large glowing thing in the sky called the moon washing out all those stars, along with being in a heavily light polluted zone there wasn't too much testing I could do. 

A couple of things that jumped straight out at me were the illuminated buttons which could make things much easier at night. They weren't a strong illumination, just a nice back-lit glow. The other thing I did notice was the live view screen, how smooth it felt when I was panning around looking at the back of the screen. The camera also auto focused quicker than my D810a or so it felt. Now being an astrophotographer there are a lot of functions that I didn't use so I really can't comment. However overall I would most certainly own one!

Without going to much into the camera, I only used the functions I would if it was my D810a I was shooting with and as this is mostly based with astrophotography the first thing I did was take dark frames to compare later. 

All images taken at a 30 second exposure, with all NR functions turned off. I wish I could have taken longer exposures however unlike the D810a the D850 can only take up to 30 second exposures before having to use a intervalometer. Maybe next time I get my hands on one I will attempt to shoot longer exposures of 1,2,3,5,10,15 minute length and various ISO's.

To evaluate the noise in the single dark frames I have used Pixinsight, as always when importing RAW files into pixinsight it's good to change the DSLR preference settings to Pure RAW so that way we are evaluating the grey scale noise.

Nikon D810a / D850 - ISO 800 

D810a

 D850

 Screen Transfer Function

                                                         D810a                                                                   D850

 

Nikon D810a / D850 - ISO 1600

D810a

D850 

 Screen Transfer Function

D810a                                                                                                                       D850

Nikon D810a / D850 - ISO 3200

D810a

 

D850

Screen Transfer Function

D810a                                                                                                                      D850

 

Nikon D810a / D850 - ISO 6400

D810a

D850

 Screen Transfer Function

D810a                                                                                                                       D850

 

Now the resolution of the D850 is much higher than the D810a so how that affect the noise levels in comparison I'm not sure. However for my nightscape astrophotography I will be sticking to my Nikon D810a, the fact I can pick up all those H-Alpha regions in space far more out weighs the extra resolution that the D850 can provide.

Landscapes though I would highly recommend the D850 over the D810a.



 



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