Size comparison of various mirrorless lenses. Had to use my iPhone, what with all my lenses being on the table... From smallest to largest these are: Panasonic 14mm Panasonic 20mm Olympus 45mm Olympus 14-42mm Sony 18-55mm Panasonic 14-42mm Minolta 50mm f/1.4 (with m4/3 adapter) Panasonic 45-200mm All of the lenses are sitting without any caps, as I feel that is the most fair way to compare. I just got the Sony NEX, and I had a greatly exaggerated impression of its lens size from reading online reviews and blog posts. It's slightly smaller than the Panasonic kit zoom and slightly larger than the non-stabilized Olympus kit zoom. Sure it's no Lumix X pancake zoom, but it is hardly the camera-dominating colossus everyone seemed to describe it as.