Summary: I recently upgraded to the Sony 100mm f/2.8 macro from the Sony 30mm f/2.8 macro lens. What can I say? I love it! I use this lens coupled with my Sony A77 and the results have yet to disappoint. I will say- manual focus (for me) works a lot better than relying on the auto focus. Although the AF is relatively silent, it seems pretty slow and "focus hunts" a bit more than I'd like.
Summary: I have used this 100 mm macro lens for years on film cameras, Sony alpha 100, Nex 5, and, now on the Sony a7R. It must be attached with the A to E-mount adapter and will autofocus through the mirror; however, there is such a stack of glass that this lens does better on the level in AF mode. I recommend manual focus in steps if you have the right situation. Close it down to F/32 for finely focused closeups or open it wide to F/2.8 for portraits with creamy bokeh.
Summary: If you want to see the world you cant see with regular lenses, then this lens is for you! I love taking pictures of bugs and flowers in macro. When your friends see it they are amazed. I even got a picture of a mosquito's shadow with this thing.
Summary: This is my 5th Sony lens purchase. I always shop less expensive brands like Sigma but inevitably come back to Sony. If nothing else, I expect Sony's a65 firmware to correct many minor lens flaws. Reading reviews I feel Sony lens are a tad better but I've never tested other brands to verify this for myself. I can say I've never been disappointed in a Sony lens.
Summary: I use this lens with an APS-C sensor camera which converts this lens to an effective focal length of 150mm. This allows for a comfortable distance between the subject and lens at close range at the expense of a very narrow depth of focus. The lens is sharp; however, there is noticeable diffraction distortion (loss of sharpness) at f16 and beyond. This lens is best suited for full frame cameras for which it was designed.
Summary: I absolutely love this lens!!! It's a perfect addition to my collection. I have been taking photos of flowers for a long time, but I never had a decent macro lens that would allow me to get those extra details. This lens produces some high quality images. Colors seem to come alive and with great detail. If you're trying to decide which macro lens to add to your collection, this is the one to choose.
Summary: I bought this for use with the a99. It produced very sharp images but it hunted for focus way too much, even in bright sunlight. To many of the images I shot were out of focus. It was also rather noisy when focusing and the color it produced was not rich enough for my taste. I was unhappy with the lens and returned it.