Non-rotating Focusing Ring : No rotation
Mount Material : Metal
Focus Ring in AF Mode : No rotation
Direct Manual Focus : Yes
Lens Mount Type : Sony E-mount
Low Noise During Movie Capture : Excellent
Minimum Focus Distance : 9.6″ 0.24m
Filter Diameter : 49mm
Lens Weight : 2.5 oz (70g)
Internal Motor : Yes (Stepping motor)
Aperture (Max.) : f/2.8
Aperture (Min.) : f/22
Aperture : Circular
Maximum Magnification : 0.078x
Focal Length (35mm equivalent) : 16mm (35mm) 24mm (APS-C)
Aspheric Elements : 1 aspheric surface
Aperture Blade : 7 blades (Circular aperture)
Angle of View : 83°
Fit and finish are very good. The lens appears to be clad in metal, and has a metal mount, but is extremely light-weight and almost seems like it could be a mock-up, with no glass or internals. At first I was hesitant because of some reviews that i had read online about its poor IQ overall. Well, after using it and pixel peeping with the RAW image files i can say that this lens produced outstanding result. Some people complain about this lens because it is not a pro lens. It does a good job for the price, just don’t expect it to be the same as a $1,000 lens.
Light falloff is a factor, but not a huge one, with this lens. When used wide open at ƒ/2.8. Distortion is usually a factor for wide-angle lenses, and so it’s not surprise to find distortion in images shot with the 16mm ƒ/2.8 E
that a wideangle prime like the 16mm isn’t really a general purpose lens, but instead better suited to specific subjects – typically landscapes, architecture, interiors and the like.
High ISO performance, both in JPEG and raw is impressive, with noise, kept well controlled up to ISO 3200, and giving very usable results even at 6400. It’s a good lens for what it is, a small pancake to make the NEX camera body portable. specially for panorama option on NEX systems. A nice looking, very compact, pancake style lens that looks great on either the NEX3 or NEX5 bodies.