Camera Test: Nikon D7200 DSLR. If you're serious about photography but find full-frame DSLRs too pricey, a camera like Nikon's D7200 will likely catch your eye. ... Its 24.2MP APS-C-sized (Nikon calls it DX format) CMOS sensor managed to capture 2825 lines per picture height at ISO 100 in our resolution test.