Excerpt: Overall, I've been impressed by the quality of the images, and the relative light weight of the lens. Build quality is very good. The single image focus speed in good light is very quick. In poor light, focus speed suffered. From what I've seen so far it isn't very good at tracking fast moving objects, but I've only done limited testing with it.
Pros: Consistent Output, Durable, Lightweight, Rugged, Strong Construction
Summary: I purchased the lens for bird photography for my E5. The combination of the E5 being a hefty camera in combination with this bulky lens makes hand held quick focus and shooting a bit difficult for me anyway. I would recommend using it with a sturdy mono pod or tripod for outdoor animal photography. The lens does give crisp and sharp images.
Excerpt: I just recieved this glass by UPS. I bought it used and cannot see any signs that it has been used. Whoever had it took very good care of it. I bought it along with a new 12-60 f2.8 and both will be mounted to an E510(kit) that I bought from Adorama I don't know how many years ago. Both lenses were carefully packed and are in excellent condition.
Pros: Easily Interchangeable, Fast / accurate auto-focus, For Now, Quiet AF
Excerpt: I use this lens on my micro 4/3 system with an adaptor. The images are fantastic. It would have received 5 stars but for the slowness in focusing, and occasional "seeking" that it does. Because I'm using it on a micro system, I don't know if this is how it would focus on a 4/3 system. Other than that, I love this lens and can't wait for every opportunity to use it. (I shoot sports and potraits.
Pros: Easily Interchangeable, Nice Bokeh, Sharp images, Strong Construction
Summary: I'm very happy with this lens. The picture quality is good and the focusing speed is very fast. Focusing speed was my main reason for buying. The $1200 price new was more than I wanted to spend. After being outbid about 8 times I finally was successful. Be sure to get the SWD version and not the older ED lens. The SWD has a blue stripe to identify it.
More then doubled my keepers and can shoot into the evening low light
14 June 2012
Summary: Yes it is heavy. But that is what you get with a quality lens like this. Having some time getting used to the AF in low light trying to focus on other objects but I think that is the camera not the lens as mine doe not pin point the AF area small enough. I have used it for birding and was very proud to post I think some really awesome pictures I would not have come close to with my slower 40-150. This lens is many times faster.
Excerpt: I was using a 12-60mm but wanted something to give that little extra to my photos, the 50 - 200mm does great. Like the clear color, very detailed. I do mainly portraits, with little flowers now and then. It is a little heavy will have to get use to that; tri-pod will help that. This will be my main lens along with the 12-60mm. I would recommend it to people.
Pros: Durable, Fast / accurate auto-focus, Strong Construction