Tamron warns its 20mm, 24mm and 35mm F2.8 primes have AF issues with Sony a7 IV cameras: Digital Photography Review
Tamron 20mm f/2.8 Di III OSD M 1:2 review | Digital Camera World
Hands-On Review of the Tamron 20mm f/2.8 Di III OSD M1:2 for Sony FE-Mount | Contrastly
Tamron 20mm F2.8 Di III OSD M1:2: Digital Photography Review
Fstoppers Reviews the Tamron 20mm f/2.8 Lens for Sony | Fstoppers
Tamron 20mm f2.8 Di III M1:2 review | Cameralabs
USED *** Tamron 20mm F/2.8 Di III OSD M1:2 Lens for Sony | eBay
Sony A6400 Camera and Tamron 20mm F2.8 Di III OSD M1:2 Lens
Tamron 20mm f2.8 Di III M1:2 review | Cameralabs
Tamron 20mm f/2.8 Di III OSD M 1:2 4K Cinematic Sony (Is the $299 Super Wide-angle lens any good?) - YouTube
Tamron 20mm f/2.8 review: Landscape photographers have to give this compact prime a look - Photofocus
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Tamron 20mm F2.8 for Sony E Mount Lenses
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New Lens Day! Tamron 20mm f/2.8 : r/SonyAlpha
Amazon.com : Tamron 20mm f/2.8 Di III OSD M1:2 Lens for Sony Full Frame/APS-C E-Mount : Electronics