A37 and A57 what's the key difference?

Dirk W wrote:

There is one key difference that has not been mentioned in this thread, but before on this forum: With a little technical skill you can adjust a back focus or front focus on the A37. There are instructions on the internet how to. With the A57, this is obviously VERY difficult if not impossible, due to a different body construction. Considering that SONY sometimes seems not be too careful with this adjustment, even after complaints, it might be a reason for the A37.