In the bag with the A57 SAL 18-135 fits. Problems with the placement of the attached to the camera strap I had not, contrary to some other review. Fits well "over the camera" pure, the bag is indeed flexible. Just a pity that you can not close well so the bag that attached to the camera strap for carrying camera and bag used. Instead, the bag has its own shoulder strap.
On the side is a small mesh pocket, can be plugged into the example of lens covers. But it is not closed (only by elastic; the network specialist had at my first pocket said small hole).
In front is a secured by a zipper accessory pocket, in the not too much goes in, but at least one or two secondary batteries, memory cards and possibly a couple of filters. The charger etc. but does not fit purely.
Downer: The bag is (also taking into account the VAT) almost twice as expensive as in the US. This Sony-pricing policy to the detriment of Europeans earned a point deduction.