I have a Nikon d7200 and am looking for back up camera ? I do own some afp lens , trying to keep price lower , having hard time because the afp lens are not in line with older camers ? Any help ?
Most pro's use a BACK UP CAMERA, as, a BACK UP CAMERA in case something happens to their main camera during a professional shoot.
Most Amateur photographers have no need to have a BACK UP CAMERA, because, it is rare indeed that a camera like a Nikon D7200 will actually fail, but, it does happen.
The main reason amateur photographers want a BACK UP CAMERA is because they need to justify the purchase of another camera.
Now, with all that said, when I was a professional photographer, my back up camera took the same lenses and operated the same way as my MAIN CAMERA. Why, because, if I had to go to the back up, it would be a SEAMLESS TRANSITION.
When I owned my Nikon FTN, my first back up was the Nikon F2, then when I sold my Nikon FTN, my back up for the F2 was the F3 HP.
In your case, your best bet would be another D7200. BUT wait, right now Nikon has the Nikon D7500 refurbished at an additional 25% off. So, my personal choice would be the D7500, my back up was always the next one up. OOPS, Nikon just ended that sale, sorry.
So, my choice would still be a refurbished D7200 or D7500, or a Mint used D7200 or D7500 from B&H.
Or Mint in the box with a low shutter count from Ebay.