D610 or D750

[jsecordphoto]

I haven't compared the d610 to the d750 personally, but I have tested it side by side the the d810 and 800e, and the high ISO performance is noticeably better, by about a stop. I do shoot above 6400 somewhat regularly doing astrophotography and even at 12,800 the noise isn't that bad- certainly manageable. If you don't shoot often at high ISO (3200+) often, I'd say get the d610. For me, the d750 is pretty much the perfect camera, but your needs may vary

 

[Daniel The Cool]

D610 is actually a good one. I'm currently using that right and its also my first FX I owned.

 

[crusheddiced]

For me, I'm more familiar with the D750. I found it to be a good camera!