The SAL70400G has three focus-hold buttons and when either is pressed the auto focus function is suspended and the focus is fixed for shooting. Teleconvertors are usable for this lens, both 1.4x and 2.0x. However, auto focus will not work on this combination, only manual focus available. SAL70400G is almost two times as heavy as SAL70300G and uses 77mm filter, similar to 70-200mm F2.8. SAL70400G is almost two times as heavy as SAL70300G and uses 77mm filter, similar to 70-200mm F2.8.

For sample photos of SAL70400G return back after the official announcement. At the mean time, look at the sample photos of SAL70300G .