I LOVE my Sigma 35mm lens. It's my favorite to use for food photography because a 50mm seems to close. It has a really low aperture at 1.4 which makes the details of the food really stand out. It's a bit expensive, but for me is worth every penny because I use it every day. I would definitely recommend saving up for this lens, you won't regret it! If you are interested in a 50mm lens, my recommendation is:
If your camera doesn't have WiFi capability, you know how annoying it is to plug your camera into your computer every time to get your photos. By using a wifi card, you can transfer all the photos to your phone to edit and post immediately! It's a total game changer.
Eyefi has just recently gone out of business (as far as I understand) so all of their products online are really expensive. Here are some alternative products that work great when your camera does not have wifi capabilities: