The Voigtlander 15mm f/4.5 Version III Sony FE mount is now shipping to major retailers. I loved this lens when I reviewed it for my M, it was very sharp and well corrected for the price. If you’re a fan of shooting wide and the 10mm/12mm are too wide for you the 15mm might be a good option for the price.
Voigtlander 15mm f/4.5 Version III Sony FE Mount
Amazon
B&H Photo