Joining the Batis 25mm and 85mm is a new 18mm f/2.8 ultra-wide lens that every Sony shooter is definitely going to want in their camera bag. Perfect for getting all the details in a landscape or architectural shot, the 18mm is not only a great piece of glass, but it's also impressively compact. 

The lens construction features 11 elements in 10 groups and is housed in a sleek dust and weather-sealed body just like its siblings. You've also got anti-reflective coatings for a crystal clear image and a built-in OLED display that shows you focus distance and and depth of field range. 

$1,500, bhphotovideo.com