I think you are over-thinking all this IMHO. I sell on Ebay and Etsy. First, the camera: many manufacturers make cameras that do nice, sharp, detailed photos. That is what you want. Nikon makes some models that are better than other models of the same brand due to sensor size, lens, processor, etc. This is true of most major brands such as Canon, Olympus, Panasonic, Sony, Pentax, etc. Stay away from those "cheapie" cameras you see for under $100 at Walmart like Vivitar, Polaroid, and generic brands. I have bought new and used cameras... Ebay and Amazon have a good policy; if the camera is described as fully functional and is not, you get your money back. I've bought cameras used and have gotten tons of great pics out of them, so don't be afraid. I've also been refunded for cameras that did not work right or were damaged and not disclosed as such. I finally bought a new Olympus OM-D E-M10 ii as my e-commerce and personal "go to" camera with kit lens and love it! Pictures are sharp and items look great. But it was expensive. You can get nice sharp pics with a M43 (micro 4/3rd) camera or DSLR, but they may be more complex to operate, depending on model. A "bridge" camera can do well as would a good point and shoot, though the cropped details may not be quite as sharp or "pop" from the page. I know someone who sells on Ebay and uses an old Nikon Coolpix P510 with decent results and LOTS of sales. The camera does not make the sales... you do! For Ebay, we usually use a solid white background. For Etsy (more creative artsy site), I use white, black, and wood backgrounds, depending on the item. Play with your options and if you are a newbie to Ebay, don't spend a ton of $$$ on cameras and tripods. Save the money and buy a TESTED and WORKING used camera and tripod (make sure it has the camera mount as some tripods are sold used because the mount is missing). It's not an easy way to earn a living; it is very time consuming and requires dedication, good sourcing practices, maintaining your margins, and good customer service/ratings. Put your time and energy on finding great items to sell as bargain prices rather than sweating over a Nikon or Canon point and shoot. Oh... almost forgot.... like most others recommended... spend the time to get to know your camera, experiment, take a lot of shots and note your settings (we prefer P or A (aperture priority) for Ebay with low ISO to prevent noise), and READ the camera's owner's manual!!! If it doesn't come with a manual, you can find them online. As for lighting, my friend uses a light tent with pro photography lights with diffuses... I go outside on my lanai, put a few pieces of white foam board on a table with a box behind to hold up the back, and voila! Different strokes for different folks!