I have now tested the lens even more intensively and with tripod stand in comparison with the A55. One you realize how much the automatic correction works, the distortions are calculated away on the A77. On the A55 there is no correction, there you can see the distortions in the border area but unfortunately there is clearly with the A55 also visible AC (red fringing) in the edge region. The A55 provides the lower sensor resolution but also less details in the images represent.
Especially great the opportunity at the SSM AF at any time be able to intervene in the AF manually if you then press the magnifying glass button on the A77, the color edge enhancement is activated. A better control of the depth of field has mE no other camera manufacturer. Even professional photographers with their outrageously expensive Nikon, Canon, Phase One equipments come to ponder when you show off them (they take a a meadow, they see so every blade of grass will be in focus). The trimmed on brightness optical viewfinder slices can use the Ablendfunktion because simply not mithalten.Ich've never so much as focus manually with the A77. Not because of the AF would be bad - he is even super- but because I like to want to actively influence the depth of field. This is only possible with the autofocus ring the SSM lenses and the Peaking function in the OLED viewfinder. Therefore came with me by the way the visually highly praised Sigma 17-50mm 2.8, not only due to the weaker wide angle, not on the short list (the AF ring rotates with it !! and we can not hold him or even twist in AF operation). When I use the Sony AF to focus and when I have some time I go without switching to the last detail.
Who likes to make video - the A77 is the ne plus ultra Here comes the Sony SSM 16-50 (and also the SSM 70-300G) not over, because the really inaudible and lightning-fast AF.
Even with the Sony 16-105 and the kit drops to 18-55, which are very soft, these two lenses with the Alpha 55 toward the edge. Again, the focus is the A77 (thanks to integrated correction) in particular with the Sony 16-105 significantly better. With the A77, the Qulitätsabfall reduced in sharpness at the edge of the Zeiss 16-80 16-105 clearly. As you take better then the Sony 16-105 due to the stronger Teles and lower price.
Look at Nikon and Canon what there alone as a class 2.8 16-50 (24-70mm) lens costs.
