Sony 16-50mm f/3.5-5.6 OSS Alpha E-mount Power Zoom SELP

The lens Sony E PZ 16-50 mm f/3.5-5.6 OSS has alternatives available from the Tamron:
Tamron 17-50mm F/4 Di III VXD
Tamron 17-28mm f/2.8 Di III RXD
Tamron 20-40mm f/2.8 Di III VXD
Tamron 11-20mm f/2.8 Di III-A RXD

The 16-50mm f/3.5-5.6 OSS Alpha E-mount Retractable Zoom Lens from Sony is a retractable zoom lens with a focal length range of 24-75mm in the 35mm format equivalency. It covers shooting lengths from true wide angle to standard portrait length and is a great day-to-day type lens, especially since its retractable design keeps it very compact. When powered on, the lens expands, but in its off position the lens is only 1.2" (30mm) which will fit in your pocket. When expanded, it has a surprisingly large zoom range and access to its dual-function control ring for manual focus and zooming. Its Power Zoom capability in AF mode and Internal Stepping Motor provide, fast, smooth and quiet autofocus which is helpful when shooting video with this lens.

The lens is a Sony E-mount lens that is compatible with APS-C-format mirrorless cameras. The built-in Optical SteadyShot image stabilization system reduces the effect of camera shake which is particularly problematic when tracking moving subjects in video or shooting photos in low-light. The OSS provides approximately 4-stops of shutter speed correction to help create blur-free images no matter the shooting conditions. Four Aspherical elements and one ED element correct for curved perspective at wide-angle lengths and chromatic aberration at telephoto lengths to provide sharp, high contrast imaging across the entire frame.  

Performance
Focal Length	16 - 50mm Comparable Focal Length: 24 - 75 mm
Aperture	Maximum: f/3.5 - 5.6 Minimum: f/22 - 36
Camera Mount Type	Sony (E Mount for NEX)
Format Compatibility	APS-C
Angle of View	83° - 32°
Minimum Focus Distance	9.8" (24.89 cm)
Magnification	0.215x
Elements/Groups	9/8
Diaphragm Blades	7

E PZ 16–50 mm F3.5–5.6 OSS (SELP1650)
Great for travel, this lightweight, retractable mid-range zoom collapses down to just 1.18 in. It also features a power zoom for smooth, silent, effortless zooming.

Powered zoom for effortless control
Shooting stills or video, a powered zoom gives you maximum creative control. For added convenience, operate it using a zoom rocker on selected NEX cameras.

Capture smooth, blur-free images
Built-in Optical SteadyShot™ image stabilization within the lens provides smooth, blur-free photos and videos when shooting handheld.

Smooth defocusing
Instead of a standard polygon-shaped lens aperture, this lens features a 7-blade circular aperture for more natural, rounded defocusing, or bokeh.

Refined optical performance
Aspherical lens elements minimize distortion while ED (Extra-low Dispersion) glass elements provide superior contrast, resolution, and color fidelity.

Exceptionally smooth powered zoom
Less than 1.18 in long when retracted
Built-in OSS (Optical SteadyShot) image stabilization
Aspherical lens elements and ED glass
35 mm equivalent focal length: 24–75 mm

MINIMUM FOCUS DISTANCE
0.82-1 ft (0.25-0.3 m)
MAXIMUM MAGNIFICATION RATIO (X)
0.215x
FILTER DIAMETER (MM)
40.5mm
WEIGHT
4.1 oz (116 g)