jimpitt wrote:
I have a D500 and two full frame zoom lenses.
I am wondering if it would be better to upgrade to a D850 or mirrorless.
Will my current lenses be adaptable to a mirrorless, or is the D850 full frame a better idea.
Thanks.
This completely depends on your use case and what lenses you have:
If your use case is fast action/sports/wildlife you should just stick with your D500 as crop sensor is likely better for these genres anyway and the DSLR's are better at tracking action than mirrorless (for now - this will change later this year).
If you shoot anything else: portrait, event, architecture, real estate, landscape, street then you are better off with a full frame camera. FF has better DR, less noise at a given ISO, wider field of view, and you can achieve shallower DOF at the same field of view/frame angle.
Then the question is D850 or Z7II - since you are not a sports/action/wildlife shooter in this scenario as we have already established that you should stick with your D500 if you are, you should definitely go with the Z7II. It has the same 45.7 MP sensor as the D850 but you gain the EVF which changes photography forever once you are used to it. If your lenses are newer - i.e. newer than screw drive versions - they will work flawlessly on the Z7II with the FTZ adaptor - yes they may acquire focus just a moment later than on a DSLR of you are racking them from closest focus to infinity and vice versa but this slight difference will not matter to what you are shooting. The upside is that the Z camera will breathe new life into your existing lenses adding 3 axis IBIS with F mount lenses (5 with Z mount) and focusing points across the screen - my 58mm 1.4G and 105mm 1.4E lenses have been reinvigorated by using them on the Z cameras for just this reason - they are literally more versatile and definitely more fun to shoot with.
With the exception of fast action, there is nothing that the Z7II cannot do that the D850 can but you also get IBIS, and EVF, Eye Detect AF (which works really well now after the latest FW update), and an actual functioning and competent video camera - the AF on the D850 for video is abysmal - it is excellent on the Z7II. Maybe you do not care about video but this is an added extra for the same price, so even if you only use it a few times it is worth it and once you do use it you will likely keep using it because you get good results - unlike the D850.
If you still want to use your DX lenses on the Z7II, they will work by way of the FTZ adaptor but will shoot in DX mode which means you will have approx 20MP if using a Z7II (this is exactly the same on a D850). But, with the Z7II you also get the IBIS, EVF, Eye Detect, video capabilities and so much more. The D500 is a 20MP camera so in this respect both the D850 and Z7II are just as good.
Nikon is moving to mirrorless - this is obvious. The next generations of mirrorless starting with the Z9 to come out later this year and all subsequent current models i.e. Z6III and Z7III and the upcoming Z8 will all be better than DSLR's in every way (including tracking). As such, if you are getting a new camera, get into the Z system and start spending your money on the Z lenses, which are second to none and generally blow away analogous F mount lenses.
If you just like to shoot fast action, then keep your D500 for now as it is still excellent at this, and wait until the next generation of mirrorless in the next 12-18 months and then upgrade.
Hope this helps.
-B