I just got Nikon D3100. The only camera I have used in the last 13 years is the one in my phone. I used do photography for a living but just got burnt out. I have quite a few older non AF lens Nikkor lens. From what I can find on the Nikon page is they may work but I won't have all the auto features. That is fine, I can live without that. I read I also I will have to sync the flash at a speed lower than 1/200th, not sure what speed? Anybody using a newer digital camera with older lens?