Samyang 12mm - PRO: cheap, sharp CONS: focal length fixed at 12
Sony 10-18mm - PRO: sharp(best), focal length CONS: Expensive
Sony 16-50mm (kit) - PRO: cheap, weight, sharp,all purpose CONS: has soft corners when wide open at 16mm only
Carl Zeiss 16-70mm f4 - PRO: Sharp,contrast,all purpose...