The Sony GMaster 24-70 and 70-200 lenses get a lot of criticism, as they don’t compare quite as well in terms of image quality or – particularly – build quality versus the other first party competitors. But that might change, as Mark II versions of both are now seeded with the Sony Artisan group of sponsored photographers.
The later-introduced Sony 200-600mm G zoom proved itself among the best wildlife lenses available in any mount for both image quality and build quality (with the exception of a few design oddities, such as strap lugs far from the center of gravity). That lens, pictured, above, shows that any new f/2.8 lenses coming from Sony could be very significantly better than its early attempts.
The lenses are being tested (and used to create marketing pictures) with an expected announcement in Q3, for release in Q4.