Brian
I own four macro lenses for my Sony camera (including this one). This is a nice combo of portability and quality. As many reviews have mentioned, the autofocus capability is not that great, especially in low-light conditions. The IQ is pretty good as long as you can nail the focus. What I like about this lens is that: 1) its a 50mm on a full frame 2) flexible meaning I can do typical portrait or landscape shots + macro 3) 1:1 macro on a full frame..more so with a crop sensor..due to the crop sensor factor. 4) IQ is pretty good considering the cost and build. 5) f/2.8. This is nice and it helps with DOF and when shooting in low-light conditions (assuming you want that DOF when shooting in those lighting conditions) What I dont like: 1) autofocus. Its not fast and at times inaccurate. You really need to monitor your subject if doing a macro. In addition, it hunts in poor lighting conditions and a way around this is to learn to use the autofocus limiter switch on the barrel of the camera. It has missed the mark on landscape shots from time to time. This lens probably isnt good for sports or activities unless youre shooting @ or near infinity focus position most of the time and at the right aperture to achieve =>1/500th shutter. 2) Build quality is mostly plastic but at this cost, this is typically what you get for a lense these days. 3) Being a 50mm your focus distance to the subject is less than a 90 or 100mm lens. Not that its the fault of the manufacturer but rather a limitation faced by many lenses of this size. 4) Will it last? Time will tell. Recap: Good lense with limitations. As long as you understand how to compensate for the limitations, this is a nice lens to add to your arsenal of camera gear. If youre a beginner, then this lens will probably frustrate you some. In poor lighting conditions (& handheld), you really need to ensure your shutter is > = 1/60th to limit blur; however, the A7rII does have built-in stabilization which does help with this and would allow you to shoot @ 1/30 (or at times a little less depending on how you handle your camera). Understanding your camera settings like Aperture and ISO settings allow you to get the shutter when it needs to be. With a tripod youre ok. If you read this and think, "well I dont know much about what this guy just wrote", then its time to take your camera skills up a notch and learn how to new level. Its not hard but takes some time to understand. There are good books out there by Bryan Peterson (and classes) found here which will elevate your skills a lot. Price paid new $350