If your main concern is getting the most money for your camera, I recommend selling it on eBay. Otherwise, just take it into the store. They are not going to qoute without seeing it in person.
Probably below market value, they are after all going to inspect/clean it and relist it.
We would have to look it over to give you a value. It depends on condition, and what original accessories you still have with it. The price we can offer will be lower than you could get if you sold it to someone yourself. Digital cameras need to be left with us for a day to evaluate with any original accessories (box, battery, charger, caps, cords, manual, strap, etc.)
I got 175$ for my Canon 7D that was in great shape and came in the original box all the papers and a 50mm lens
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