I'm looking to purchase a used beginner dslr for macro photography of my corals and fish. I've been looking on Craigslist and other local buy/sell places and I need some help determining a good deal. I'm trying to keep my total budget around $500. I realize that isnt much but I think with some patience, and some haggling and charm I'll be able to find something. I'm having trouble narrowing down the models to look for. I have seen recommendations for nikon 3300, 3200, and 3100. I'm not sure what the comparable Canon models would be. Someone also recommended a Sony a6000 and I don't know how that compares to the other brands but it also seems like a good option. As far as lenses I think I've got a general idea but I am not sure how to tell if a lens will work for a camera I've seen a lot of recommendations for a Tamron 90mm. I've also seen a Tokina macro lens recommended, as well as Canon and nikon macros. As far as I can tell, any of them will work for my needs so it's just a matter of which will fit my camera and what I can find a deal on. This is one ad that I found, I've never seen anyone use this brand of camera but maybe they are good? I asked for specific model info. This one is probably more than I was looking to spend but might still be worth it? I would love to hear anyone's thoughts on any of this. Any tips or advice is welcome!