Sony SEL20F28 Quick Manual

SEL20F28
Superior Image Quality
Three aspherical lens elements correct distortions and aberrations. In particular, image quality in peripheral areas has
been dramatically improved compared to previous lenses. The high resolution and excellent contrast assures richly
detailed images free of distortion, making the lens an outstanding choice for a wide range of subjects such as casual
snapshots to majestic landscapes.
Compact length
Measuring a mere 13/16 inches (20.4mm) the lens is 2mm shorter than the SEL16F28
High Quality Exterior
The aluminum alloy lens barrel is inlaid into a molded-plastic component for a lightweight yet durable construction and
features beautiful laser engraving of the product name and focal length for a stylish finish. The control ring allows for easy
operation while the lens exudes a stylish appeal.
Circular Aperture
The SEL20F28 features seven aperture blades that form a near circle. This result in a pleasing defocused circular effect on
the background of your image when the aperture is set wide open. The same type of internal stepping motor used for the
focus drive is used for aperture actuation as well, that result in a smooth, low-noise aperture operation ideally suited to
movie shooting.
Handy Focal Length
With a 20mm focal length (35mm equivalent 30mm) and a bright maximum aperture of F2.8, the SEL20F28 is ideal for a
variety of subjects from landscapes, interiors to casual snapshots.
Specifications
Optics/Lens
Aperture (Max.)
Aperture (Min.)
Focal Length (35mm equivalent)
Filter Diameter
Lens Groups-Elements
AF for Movie Capture
Minimum Focus Distance
Aperture Blade
Aspheric Elements
Dimensions (Max. Diameter x Length)
Direct Manual Focus
Exterior Finish
Focus Ring in AF Mode
Internal Motor
Lens Weight
Low Noise During Movie Capture
Maximum Magnification
Mount Material
Non-rotating Focusing Ring
Weights and Measurements
f/2.8
f/16
30mm
49mm
6 groups, 6 elements
Yes
7.8" (0.2m)
7 blades (Circular aperture)
3 aspheric surface
2-1/2 x 13/16" (62.6 x 20.4 mm)
Yes
Metal
No rotation
Yes (Stepping motor)
2.4 oz (69g)
Excellent
0.12x (APS-C)
Metal
No rotation
Alpha E-mount 20mm F2.8