Interesting further information from some of the Nikon management involved in the development:
http://www.imaging-resource.com/PRODS/nikon-d850/nikon-d850A.HTM
* 1 full stop extra ISO performance
* BSI sensor used as much for speed as IQ
* ~ 7 seconds to clear the buffer
* Focus shift function has a minimum ? gradation of 1/30th the focal length of the lens used (can this be correct?) - so for a 600mm lens that would be 20mm - useful ?
Also ...... anyone (with a more decent monitor than mine) care to comment on the WBSE image (#5) from the official Nikon pictures I posted in the link above ??
Even though the tonal gradation is smooth, I was expecting more DR ? ..... I can't see too much detail in the black (underwing), or the white prior to blowing (on the back of the neck).
Some have also complained of the images sharpness? , though it looks okay ? on my displays ..... :cat:
Chosun :gh:
If I understand correctly, the hi-res photos Nikon posted are RAW converted to Jpegs using the bundled software. Seeing that the 500mm f4 + 1.4xTC is a pretty sharp setup (and quite typical of what will be used in practice, if not even conservative - I know a few who use 1.7 or 2xTC's with 5 and 600 f4's) , I think I still would have expected more detail in the WBSE, particularly in the white on top of the head and back of the neck, given where the histogram sits, and given the exif data of a low ISO 400, aperture stopped down some to f6.7, and 1/3000th of a second shutter speed. ?:brains:?WBSE is shot with 1.4x TC (700mm) at ISO 400, and the speed of the eagle was ??? mph, DR is probably 2 stops less at ISO400 than at 100, so don't expect Hasselblad quality. And it's a JPG, there should be more headroom and details in the RAW.
#1 photo, the landscape shot at ISO100, looks pretty noisy though. Dim light, longer shutter speeds, will generate more noise of course, per pixel noise does not seem to be super low in dim lighting, but we'll see more on that soon.
My interest for the D850 is actually increasing, it seems like a much more flexible and better camera than the D800/E/D810, overall usability, controls, grip etc. D850 will do pretty much anything a pro-camera is supposed to do, and as such the price is starting to seem pretty "reasonable".
https://www.dpreview.com/articles/1592140406/should-you-upgrade-to-a-nikon-d850
My exact thoughts on multi usage . I had thought that the fuji would do it but when I started getting black lines around a couple of the birds , i started looking and someone came up with the statement that this could be normal with the big lens.Enough for me !
Back into the fold and waiting .
If I understand correctly, the hi-res photos Nikon posted are RAW converted to Jpegs using the bundled software. Seeing that the 500mm f4 + 1.4xTC is a pretty sharp setup (and quite typical of what will be used in practice, if not even conservative - I know a few who use 1.7 or 2xTC's with 5 and 600 f4's) , I think I still would have expected more detail in the WBSE, particularly in the white on top of the head and back of the neck, given where the histogram sits, and given the exif data of a low ISO 400, aperture stopped down some to f6.7, and 1/3000th of a second shutter speed. ?:brains:?
I have been digging around a bit, and some early DR/ ISO/ SNR data (or constructions thereof) seems to 'clarify' some of the Nikon execs remarks. :smoke:
As I suspected :t: , the full stop improvement in ISO performance applies ONLY to the extended top end. ie.the performance of the new D850 at ISO 25600 is the same as the old D810 at ISO 12800.
The performance at the lowest end of the ISO range is the same despite the hike in resolution, and there are gains of ~ 1/3 to 1/2 stop in the mid range. So rather than lobbing somewhere in the range between the D750 and challenging the D5 in the midrange, as I had hoped, it looks like it might approach (or match) the D750 midrange performance. Time with production models and standardized testing will tell, but it looks like an improvement on the D810 :cat:
Some more emerging data here on this thread by Bill Claff of (www.PhotonsToPhotos.net) over on DPReview: https://www.dpreview.com/forums/post/60035567
Despite all the p**-p**ing on the interwebs by the Mirrorless /Video crowd, I think it is quite an exciting 'all-in-one' photography camera, and I look forward to getting my hands on one. I suppose whether it stays there depends on how well it actually tests, how I find the feel in the hand, how much of a 2500+ ISO improvement it shows over the D500, and how well the DX performance stacks up (mid range ISO performance, AF coverage and performance, and viewfinder experience), and if the focus stacking feature works in long range photography for me ..... and of course I'm going to have to dig up some sort of a deal - coz I ain't payin' retail in Oz ! :storm:
I think I will still be 90% birds, but the better grip and balance of the heavier D850 (over a D7200) should work well with big Super telephotos and the prospect of it also being a top notch landscape tool too, is pretty tantalizing! :king:
Chosun :gh:
Vespo,I think it's pretty clear that you don't see all the beautiful 46MP:s in the WBSE shot. Photo probably would have looked as "sharp" with a D750 or even a D5. TC and distance/air will limit the possible resolution. But you can always scale the photo to smaller size to make it look tack sharp. :t:
I have seen www.PhotonsToPhotos.net, but don't expect the same results there as on Dxolabs or DPreview. According to PTP the olympus em-1 II would have better DR than D500 (at higher ISO, see Measurements). DXO shows the opposite, and that is more like what I see in the test photos on DPR.
https://www.dxomark.com/Cameras/Com...-Nikon-D500-versus-Nikon-D750___1136_1061_975
http://www.photonstophotos.net/Charts/PDR.htm#Nikon D500,Nikon D750,Olympus OM-D E-M1 Mark II
Les,Vespobuteo
This was thread on dpr. I kept trying but then succumbed to the lure of 0.75x optical.
www.dpreview.com/forums/thread/4193099
Vespobuteo
This was thread on dpr. I kept trying but then succumbed to the lure of 0.75x optical.
www.dpreview.com/forums/thread/4193099