Marc Alhadeff has just tested the newly announced Tamron 24mm f/2.8 Di III OSD M 1:2 Lens on Sony a7R IV and posted a full review. The price is affordable, but the performance is excellent!

This is the video review of the newly announced Tamron 35mm f/2.8 Di III OSD M 1:2 Lens and the Zeiss 35mm F2.8 lens. Tamron is a little larger but only half of the price.