It looks like firmware v2 from Tamron has solved the Tamron 28-75mm f/2.8’s autofocus issues successfully. So I decided to order one myself to replace my Sony Zeiss FE 24-70mm f/4.
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Tamron 28-75mm f/2.8 Di III RXD FE: B&H Photo / Amazon / Adorama
Sony FE 24-70mm f/2.8 GM: B&H Photo / Amazon / Adorama
Sony 24-70mm f/4 Vario-Tessar T FE OSS: Amazon/B&H Photo/Adorama
Sony FE 24-105mm f/4 G OSS: B&H Photo, Amazon, Adorama