>>3000164It pays to spend some time setting up all the custom buttons, dials and menus how you want.
On the wide angle front there's either the sony 16-35 FE, which is a fantastic lens, if you would rather look into slightly more affordable options a good choice is the sigma mc-11 adapter, this will allow you to use any canon lens almost like a native lens (you lose a couple of autofocus options, focusing is marginally slower). Canon have the widest selection of good quality glass, and as there's been a few generations there are bargains to be had. For example, a 70-200 is a pretty essential bit of kit for serious photographers, there newest version is a couple of grand and comes with image stabilization built in, as your camera has ibis in the body you could get the first generation non image stabilized version for a quarter of the price and still have professional quality lenses. For a wide angle you could look at the 17-40, 16-35 i and 16-35 ii. Yes the latest version is better, but it's marginal and 5 times the cost, especially when you're not using a 36/42mp sensor.
However, as I said, you can adapt ANY lens, so if you find an old manual focus 20mm nikon or something at a good price, and reviews show it's of a quality that you are satisfied with, you can fit it using a very cheap nikon to nex adapter, it's only really canon that have a worthwhile autofocus adapter. The only difference with using a non canon adapted lens is that you will have to adjust aperture on the lens, as the body won't be able to control it directly.
I'd say grab a couple of spare batteries, it's not difficult burning through one in less than a day, read up on the basics of the exposure triangle and stops, and apart from that, enjoy it! I've owned many cameras and only some of my old medium format film stuff brings me the same amount of joy to use :)