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Leeds photographer advancement somewhat.


Jack57xc2 3 29
11 Oct 2017 11:14AM
Half a point off.
thewilliam2 4 1.5k United Kingdom
11 Oct 2017 11:24AM
Bear in mind that we don't get owt for nowt in this world.

The D850 has nearly twice as many pixels as the D750 so wouldn't we expect the hi-ISO performance to be less good?
ChrisV Plus
14 2.3k 26 United Kingdom
11 Oct 2017 12:36PM
In the case of cameras of a similar generation there's potentially a lower ceiling on ISO performance, [which seems to be dictated by well size]. But the D850 is a newer design and has a range of ISO 64-102400 where its older stablemate tops out at 52800. Looking at comparison charts, the overall noise at that level [ie when the image size of the newer camera is downsampled to that of the D750], there doesn't appear to be any advantage at all due to the lower pixel count. There are other Nikons [and Sonys] that would yield better performance in ultra low light, but the D750 doesn't seem to be among them.

What we're talking about here is of course low light performance in really extreme circumstances. In most uses you'd have to say both the D750 and D850 are good low-light shooters. Unless you really specialise in that sort of photography or regularly need to shoot in a blackout, I wouldn't worry too much about it.

The claims of some cameras to be able to deliver in the millions in terms of ISO don't really live up to any sort of reasonable expectation. I reckon the gains in low-light performance since the D3/D3s really offered a big breakthrough have been incremental at best. Sensors have become very efficient in terms of eliminating most read noise, so the bulk of what you're left with is shot noise. Until someone comes up with a way of altering the laws of physics [Scotty's dead], we're stuck with that.

I think any significant further gain in low-light performance will come from a change of paradigm [multiple array computational photography looking most likely at present].
Jack57xc2 3 29
30 Oct 2017 10:04AM
Nphoto mag gave half a point off being the perfect camera.

It's so a marvellous camera but for low light high iso, the D750 and D810 are just a bit somewhat better.
Jack57xc2 3 29
30 Oct 2017 10:10AM
It also needs the best lenses and perfect focus more than cheaper cameras.

But in not complaining about this camera. It's one of the best cameras ever made.
ChrisV Plus
14 2.3k 26 United Kingdom
30 Oct 2017 11:36AM

Quote:Nphoto mag gave half a point off being the perfect camera.

It's so a marvellous camera but for low light high iso, the D750 and D810 are just a bit somewhat better.



No, I don't think that's true at all. When you downsample the images to the same sizes, there's pretty much nothing in it.
ChrisV Plus
14 2.3k 26 United Kingdom
30 Oct 2017 11:58AM
...and that's good news for anyone who is a fan of this [great] camera - because you're sacrificing very little for all that extra detail. There are a few cameras out there that can draw out a bit better ultra low light performance by lowering the sensel count, but not many and not by anything like as much as some spin [some of it from Nikon themselves] would have you believe.

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