I've have been doing photography as a hobby since 2010 when I purchased a Nikon D90. I used that camera for 3-4 year before replacing it with a D7000. I purchased both cameras used, but they were in good condition when I received them. Last summer, my D7000 started to give me issues, and I haven't had the opportunity to address them yet, so I've been effectively without a camera for half a year at this point. The issues that I had were my camera unexpectedly started taking 100% black images, as if the lens cap was on (but it wasn't). Like I said, I've been using DSLR's since 2010, and I'm not a novice at photography. I understand exposure, shutter speed, ISO, aperture, etc. So this wasn't a case of user error or lack of technique. It was in the middle of a day in the park with my family taking photos of my kids playing and all of a sudden the images were 100% black. I suspected possibly having a stuck shutter. I did some debugging with the camera with long exposure and manually opening the shutter with the camera's cleaning mode, and it seemed to be opening and closing just fine. The sound and feel of the camera when taking photos never changed, so I don't know that there is anything mechanically wrong with it. I have started to suspect that perhaps the sensor or something with the electronics went bad on it. Long story short, I don't know if anyone has experienced and issue similar to what I'm describing and what you ended up doing to fix it. At this point, I'm assuming the cost to repair from Nikon would be about the same (or maybe more) than the camera would be worth. I'm looking at replacing it with another used D7000 body, or perhaps jumping up to a used full frame camera such as the D610. Any thoughts on that? Have there been any common issues with the D610 or any of the Nikon cameras from that time period that would make me want to stay away from a certain model. I have a few accessories for the D7000 such as a battery grip and a hot shoe mounted flash, I haven't began to look at compatibility. I'm assuming the battery grip wouldn't work for a full frame body, but maybe would work for a D7100 or D7200 perhaps if I wanted to stay with DX. I have an older full frame push-pull style Nikon 80-200 f2.8 lens that I wouldn't mind taking advantage of the full frame shallow focus capability from a FX sensor. That's leaning me more towards that option if I can keep the price reasonable for a used - good condition camera body.