I have had this lens for almost a year now, and there is definitely a lot I can say about it. Pros: I love the zoom. The detail this lens captures is absolutely amazing. It is perfect for daylight photos, you will have absolutely amazing results. However, once it hits night time, the photos range from good to bad (personally I am a no flash person though). So yes, wonderfully precise and accurate photos, no detected vignetting. However, the cons are that it is a little on the heavy side, and just one weak after buying it I turned the delicate zoom a little too hard and actually broke the lens all together. It just snapped and I couldn't take any more photos, 1 WEEK after. I got it fixed for $20 thank god, and still have used it without an issue until now. So overall I really do think it is a great lens, almost professional with great zoom. Amazing for still life, animals, landscapes, and profiles. CANNOT GET UP CLOSE it will not focus, you need to step back at least 20 feet. Last but not least, zoom is audible but not "loud".