Bought for my son for Christmas, he likes it so far for the price.

This is a great lens! It isn’t too heavy and you definitely get the value for your money. It is very easy to use and I would recommend anyone. 4⭐️⭐️⭐️⭐️

This autofocus Meike 50mm f/1.8 STM lens is designed to cover full frame (FF) on Sony E/FE bodies. Although it has some issues, such a capable lens selling for under $170 is impressive.Classically, "fast fifty" lenses were bundled with film SLR cameras as the kit lens. However, most mirrorless kits instead include a relatively slow zoom lens that covers a range including the 50mm focal length. The question thus becomes, what does a 50mm prime like this lens offer beyond what your kit zoom can do at 50mm? Well, most of that is the shallow depth of focus and bokeh from use of f/1.8, although most primes can also provide a little crisper detail than zooms when stopped down.So, how good is this lens optically? I own dozens of fast fifties, so I picked a couple to compare this with that are solid performers at comparably low costs. I then did a series of comparison shots using the three lenses shown in the photo on a Sony A7RV: an old fully-manual Mamiya/Sekor 55mm f/1.8 (which cost me under $25 used), a Sony FE 50mm f/1.8 (around $250 new), and this Meike. All three lenses offer really good center sharpness at f/1.8, but the Meike is definitely more smeary in the corners than either of the other lenses. Meike's MTF charts seem approximately correct, acknowledging that resolution wide open dives around 18mm off center with the last few mm of the FF corners quite smeary. Contrast is lower and there's a little glow in the Mamiya/Sekor images shot at f/1.8. The Sony and Meike both deliver better contrast and colors, but I have to give the Meike the win on color rendering because it has less axial chromatic aberration (CA) than the Sony -- in fact, it even has less axial CA than the Mamiya/Sekor. Flare really isn't an issue on either the Sony or Meike lenses. Distortion isn't a problem on any of these lenses. Stopping down all three lenses, image quality improves the least on this Meike. Still, this Meike turns in a very solid performance overall, making very pleasing images (see attached photos from red River Gorge).How does it handle? The autofocus on this Meike was quieter and perhaps faster than the Sony FE 50mm f/1.8, although it became less sure when stopped down. However, this Meike just doesn't focus as close as either the Mamiya/Sekor or Sony lenses and that is annoying not only in limiting subject magnification but also in not being able to get as much background defocus. This wouldn't be as big an issue using the Meike on an APS-C body because the APS-C crop effectively enlarges the image 1.5X. In fact, the APS-C crop of the Meike is darn nice, and it would make a good portrait lens for APS-C cameras. Of course, the lens fully identifies itself to the camera body, so IBIS (in body image stabilization) works and EXIF data is included in every image file.As for build quality, it's rather plastic but well made. The optical formula has 11 elements in 7 groups, with one ED element and one high-index element as well as the unusual choice of a concave front element, so this lens is obviously the result of a significant design effort. Even the retail packaging was pretty decent, although it didn't come with a lens pouch. The included plastic hood feels flimsy, but mounts on the lens quite authoritatively. The lens has a huge focus ring which is nicely textured, and the auto/manual switch allows the ring to be used for fly-by-wire manual focus. As should be obvious from the photo of the three lenses, this is the largest of the three by a significant margin. With hood, the Meike weighs 401g -- which is light for its size, but the Sony is just 184.5g and even the all-metal Mamiya/Sekor with M42 adapter is only 319g. Unlike the others, the Meike has a little weather seal around the mount and includes a USB C port for firmware upgrades.In summary, this lens has a lot going for it, but it also has some pretty obvious issues: primarily size, smeary FF corners, and a longish close focus distance. When paired with a kit zoom and used just for bokeh or low light, the corner and focus distance issues become less important and size isn't much different from budget kit zoom lenses, so it doesn't feel oversized. Used with an APS-C camera, the image quality is good to the corners. In any case, the bokeh are rewardingly smoother than average and without the axial CA so many lenses suffer from. The catch is, this doesn't quite become awesomely crisp stopped down like many other fast fifties do. I think this is a great first fast fifty, but I think it is easy to outgrow it on FF bodies if your budget allows. This lens performs significantly better than the price would suggest and it would take a significantly higher budget to beat it with an autofocus lens.