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

Key Specifications

• Model: Tamron 20mm f/2.8 Di III OSD M 1:2 (Model F050)
• Lens Type: Ultra Wide-Angle Prime Lens
• Lens Mount: Sony E
• Camera Compatibility: Sony Full-Frame & APS-C E-Mount Mirrorless Cameras
• Focal Length: 20mm
• Maximum Aperture: f/2.8
• Minimum Aperture: f/22
• Autofocus Motor: OSD (Optimized Silent Drive)
• Image Stabilization: No Optical Image Stabilization
• Minimum Focusing Distance: 0.11m
• Maximum Magnification: 1:2
• Filter Size: 67mm
• Weight: Approx. 220g
• Lens Construction: 10 Elements in 9 Groups
• Diaphragm Blades: 7 (Rounded)
• Series: Tamron Di III OSD M 1:2

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Overview

The Tamron 20mm f/2.8 Di III OSD M 1:2 Lens is a compact ultra wide-angle prime lens designed for Sony E-mount full-frame mirrorless cameras. Combining a versatile 20mm focal length with a bright f/2.8 aperture and an impressive 1:2 half-macro magnification ratio, it is ideal for landscape photography, architecture, travel, street photography, astrophotography, environmental portraits, and creative close-up photography.

Its lightweight design makes it an excellent everyday carry lens, while the OSD (Optimized Silent Drive) autofocus motor delivers quiet and accurate focusing for both still photography and video recording. With its outstanding close-focusing capability, photographers can capture dramatic perspectives that are difficult to achieve with conventional ultra wide-angle lenses.

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Price in Kenya

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Full Specifications

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Features

• Ultra wide-angle 20mm focal length
• Bright f/2.8 maximum aperture
• Outstanding 1:2 half-macro capability
• OSD autofocus motor for quiet focusing
• Compact and lightweight design
• Moisture-resistant construction
• Fluorine-coated front element
• BBAR anti-reflective coating
• Excellent close-focusing performance
• Standard 67mm filter thread
• Compatible with Sony Eye AF
• Optimized for Sony full-frame mirrorless cameras

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Optical Performance

• Produces excellent center sharpness with impressive corner performance after slight aperture reduction, making it ideal for landscapes and architecture.
• Advanced optical construction incorporates LD (Low Dispersion) and GM (Glass Molded Aspherical) elements to effectively suppress chromatic aberration and distortion.
• BBAR (Broad-Band Anti-Reflection) coating minimizes flare and ghosting while preserving excellent contrast and natural color reproduction.
• Bright f/2.8 aperture delivers strong low-light capability for night photography, astrophotography, and indoor shooting.
• Outstanding 1:2 macro magnification allows photographers to capture highly detailed close-up images with dramatic ultra-wide perspectives.
• Maintains excellent image quality across the frame on Sony full-frame sensors.
• Delivers vibrant colors, impressive detail, and high contrast suitable for both photography and video.
• Excellent performance for landscapes, environmental portraits, travel, street photography, architecture, and creative macro photography.

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Autofocus Performance

• OSD (Optimized Silent Drive) autofocus motor provides smooth, accurate, and quiet focusing performance.
• Supports Sony Fast Hybrid AF, Eye AF, Face Detection AF, and Direct Manual Focus on compatible cameras.
• Quiet autofocus operation makes it suitable for both photography and video recording.
• Internal autofocus system maintains smooth operation while improving focusing precision.
• Accurate subject tracking for everyday photography and travel shooting.
• Performs reliably for close-up macro photography thanks to its advanced focusing system.
• Offers responsive manual focus override for precise adjustments.
• Delivers dependable autofocus performance in both bright outdoor conditions and indoor environments.

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Design & Build Quality

• Extremely lightweight 220g construction makes it ideal for travel and everyday carry.
• Compact dimensions pair perfectly with Sony Alpha mirrorless cameras and lightweight gimbals.
• Moisture-resistant construction protects against light rain and dusty outdoor environments.
• Fluorine coating on the front element repels fingerprints, water, dust, and oil for easier cleaning.
• Durable engineering ensures reliable long-term performance for outdoor photography.
• Precision focus ring provides smooth manual focus operation.
• Standard 67mm filter thread allows convenient sharing of filters with many other Tamron lenses.
• High-quality finish complements Sony E-mount mirrorless camera bodies while maintaining excellent portability.

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Compatibility

This lens is compatible with:

• Sony Alpha A1
• Sony Alpha A7 IV
• Sony Alpha A7 III
• Sony Alpha A7R V
• Sony Alpha A7R IV
• Sony Alpha A7C II
• Sony Alpha A7C
• Sony Alpha A9 II
• Sony Alpha A6700 (APS-C Crop Mode)
• Sony Alpha A6600
• Sony Alpha A6400
• Sony ZV-E1
• Sony ZV-E10
• Other Sony E-mount mirrorless cameras

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Ideal Use

• Landscape photography
• Architecture photography
• Travel photography
• Street photography
• Astrophotography
• Environmental portraits
• Macro photography
• Nature photography
• Interior photography
• Vlogging
• Content creation

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Pros & Cons

Tamron 20mm f/2.8 Di III OSD M 1:2 Lens Conclusion

The Tamron 20mm f/2.8 Di III OSD M 1:2 Lens is an excellent ultra wide-angle prime that combines impressive image quality, a bright f/2.8 aperture, exceptional 1:2 macro capability, and a lightweight weather-resistant design. Its compact size and versatile focal length make it an outstanding choice for landscape, architecture, travel, close-up, and street photographers using Sony E-mount mirrorless cameras. At KSh 29,900, it delivers exceptional value for photographers seeking a portable and high-performing ultra-wide prime lens.