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SEL20F28 | Alpha |
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
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,
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.) | f/2.8 |
Aperture (Min.) | f/16 |
Focal Length (35mm equivalent) | 30mm |
Filter Diameter | 49mm |
Lens | 6 groups, 6 elements |
AF for Movie Capture | Yes |
Minimum Focus Distance | 7.8" (0.2m) |
Aperture Blade | 7 blades (Circular aperture) |
Aspheric Elements | 3 aspheric surface |
Dimensions (Max. Diameter x Length) | |
Direct Manual Focus | Yes |
Exterior Finish | Metal |
Focus Ring in AF Mode | No rotation |
Internal Motor | Yes (Stepping motor) |
Lens Weight | 2.4 oz (69g) |
Low Noise During Movie Capture | Excellent |
Maximum Magnification | 0.12x |
Mount Material | Metal |
No rotation |