I shoot with A65 and A77 cameras. And I have two identical lenses 18-135 / 3.5-5.6. The lens has its own motor zoom, which allows you to focus on the desired object during shooting. The focusing is in a sense "stepped". I sometimes have to consider the details of the subject with the maximum viewfinder zoom (x11.7). And I noticed that the best focus is often obtained BETWEEN two levels of regulation. And there is no half of the focusing step in the lens. But this is so, for the most picky. In pure digital SLRs like A240, A300, A350, - up to A580 it will hardly be possible to discern this. I bought this lens after the same type of failure of the Sony 16-105 lens three times. That is after two repairs. I did not carry out repairs on the third, but bought 18-135. In terms of sharpness, 18-135 is inferior to 16-105 per hair, and in general it has some kind of different pattern. It seems less sharp, but you start to enlarge the image in Photoshop - very sharp. HA are removed programmatically without a trace. Vignetting, which all owners of kit lenses get used to, is minimal. Again, in Adobe Camera RAW, when set to the type of lens, it goes away. During movie shooting, refocusing of the lens is clearly audible if there are no other sounds in the frame. With an external microphone mounted on the "hot shoe", you hear less. The lens motor, according to my own feelings, puts the battery in a little more than a native screwdriver. But in general, the lens is very good for everyday (not portrait, not macro) shooting. For those who love to travel! May God give him a long life!
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