This is my DSLR , *istDS of Pentax.
It is succession of *istD and MZ-S.
It have 2" of back-preview-LCD. and its quality is best of others , I think.
Slower AF speed than other DSLR bodies.
But perfect compatibles with Pentax-K mount even m42 screw mount with adaptor (m42 to P-K mount adpator).
600mega pixels is enough to me.
Pictures not concludes with camera pixel resoultion.