Amazon.com : Lens Collar Tripod Mount Ring Support Bracket Holder for Sony FE 135mm f/1.8 GM, E 70-350mm f/4.5-6.3 G OSS, E 16-55mm f/2.8 G, FE Mount Tamron 28-75mm f/2.8 Di III
Tamron SP 350mm F5.6
Tamron SP 350mm f5.6 on m43 (picture heavy): Adapted Lens Talk Forum: Digital Photography Review
Tamron 50-400mm F4.5-6.3 Di III VC vs Sony E 70-350mm F4.5-6.3 G OSS Detailed Comparison