Tamron 20mm f/2.8 Di III OSD M 1:2 Lens for Sony E

Product Description:

Sleek and ultra-wide describe the 20mm f/2.8 Di III OSD M 1:2 Lens from Tamron; a flexible wide-angle prime designed for full-frame Sony E-mount mirrorless cameras. This lens uses a modestly bright maximum aperture to achieve a svelte and lightweight profile that is ideal for everyday, walkaround shooting. Also contributing to its versatility is a half life-size 1:2 maximum magnification ratio and 4.3" minimum focusing distance for working with close-up subjects. An OSD stepping motor achieves fast and near-silent autofocus performance along with full-time manual focus override. Additionally, the lens sports a moisture-resistant physical design along with a fluorine coating to suit working in inclement conditions.

• Wide-angle prime is designed for full-frame Sony E-mount mirrorless cameras, however is also suitable for use with APS-C models where it provides a 30mm equivalent focal length.
• Modestly bright f/2.8 maximum aperture strikes a balance between being suitable for working in available lighting conditions and realizing an impressively compact and lightweight profile.
• Three LD (Low Dispersion) elements reduce chromatic aberrations and color fringing in order to produce increased clarity and color fidelity.
• One molded glass aspherical element suppresses distortion and spherical aberrations for greater sharpness and more accurate rendering.
• BBAR (Broad-Band Anti-Reflection) coating has been applied to lens elements to reduce surface reflections and prevent lens flare and ghosting for increased contrast and color accuracy.
• Ideal for close-up shooting, this lens offers a half life-size 1:2 maximum magnification along with a minimum focusing distance of 4.3" to suit working at near distances.
• OSD stepping motor offers especially quiet, fast, and precise autofocus performance along with full-time manual focus override.
• A moisture-resistant construction benefits this lens' use in inclement conditions, and a fluorine coating has also been applied to the front lens element to protect against dust, dirt, and smearing.
• Rounded seven-blade diaphragm contributes to a pleasing bokeh quality.

Technical Specifications:

Focal Length                                      20mm
Maximum Aperture                            f/2.8
Minimum Aperture                             f/22
Lens Mount                                         Sony E
Format Compatibility                          Full-Frame
Angle of View                                      94° 30'
Minimum Focus Distance                    4.3" / 10.92 cm
Maximum Magnification                     0.5x
Macro Reproduction Ratio                  1:2
Optical Design                                     10 Elements in 9 Groups
Diaphragm Blades                               7, Rounded
Focus Type                                           Autofocus
Image Stabilization                               No
Filter Size                                              67 mm (Front)
Dimensions (ø x L)                                2.87 x 2.5" / 73 x 63.5 mm
Weight                                                  7.8 oz / 221 g