well I really pulled the trigger this time. bought a slightly used D3s. the sharpness is unreal. I use it with the 200-400F4 and a 1.4 and 1.7 tele. weird thing is on the D7000 the teles dont work well at all with that lens. images are soft but with the D3s they are fine. love having the faster frame rate and huge buffer and of course much lower noise