Now that the Nikon Z is announced and I know what it is, and what it isn't... I'm thinking about buying a new Nikon DSLR. I used to have a d810 but sold it before the d850 was announced and dropped the value too much. My only dislike with the d810 was how big and heavy it was.
On eBay I see some new Nikon Df bodies for ~2,100 -2,300 USD$, and some used Nikon D4s bodies for ~2,500 USD$. I have a 50mm f1.4 ziess milvus (manual focus lens) and split prism focusing screen.
I've herd the D610 is better than the Df bar the low light. I like the Df size more than the D4s, but have never used a dslr with a grip. I like the fact that the D4s has expeed 4 (df expeed 3). I like that the Df has an AE-L/AF-L button (I don't know if the D4s has another solution). I like that the D4s has better auto focus, but right now I have one manual focus lense and a split prism focusing screen. I bet the D4s would encourage me to buy other lenses and offer a lot more features however I mostly shoot in the woods (plants animals and fungi), on farms, kids, pets... slow moving subjects I easily nail the focus on first shot, I'm very used to and good with a manual focus lens.
My two biggest considerations are low light and size.
Talk me into either camera
Well size would go against the D4S, right? not sure which is better in low light. Those are pretty different cameras.
As an aside I’m not sure the D810 prices really suffered much due to the D850. Possibly due to limited availability.
As far as the D610 - I’ve heard good things overall, but it has kinda lousy AF in low light.
The D4s, D4 and Df are probably the three most similar Nikons, basically all the same sensor... maybe the Df is slightly better on low light
I really prefer the Df size, however the D4s seems like such a more capable camera. I just know large size has hindered me in the past.
1) I think it is still the low light King.. maybe the new z6 will be better.
2) I had a D610, Got it instead of the Df.. It is a good camera with a good sensor. However, I would get a D750 these days with a slightly better sensor and a much better AF. The D610 has the same AF system to the Df but a touch better. In both cases you can use the Flash AF assist system to get better results.
3) D4 just too big for me to consider....
Yes, I have Manual focus lenses I am missing using again in its FF ( only have Dx cameras at the moment. Gave away my D610 :-).
Being a photographer is a lot like being a Christian: Some people look at you funny but do not see the amazing beauty all around them - heartyfisher.
I would pick a D750 over the df just for increased dynamic range.
I agree sport.
The D750 does.
Personally I would take the D750, but the OP wasn't asking about it, so I left it out.