I pre-ordered the new Sony A7III body and am due to collect it next week. I'm new to Sony having shot M43 and Fuji X100 series the last few years. Before that i shot Canon Dslr. On M43 i having exclusively used prime lens. Usually shoot in 35mm or 50mm. What would be a good starter lens for my Sony A7III. My only requirement is that it not be big and heavy so i dont mind a 35mm prime lens. Alternatively an F4 zoom provided its very good quality. Appreciate any advice given.