I'll start this review with my experience and why it should matter to you. Filmed for 34 years, studied on film/manual lenses. From time to time I worked professionally. That's it. I'm not new to a)l. This lens has to be one of the best deals I know of. So for comparison (on the same level) you have a Nikon 50 1.8D for $135-$150 new. These are Nikons (older model) 1.8. Or you can buy 1.8G new for about $250-$300. Both lenses are good. They are sharp, render well, have very good shallow depth of field at low apertures, and focus quickly. D uses a screw driven focus motor from your camera body. G uses an ultrasonic wave motor built into the lens (you'll need this lens if you have a cheaper body. Check it out.) And that assumes you completely ignore the rest of what I have to say. For $68, let's talk about Yonguo now. The same f1.8 aperture. Same focal length. I've used this lens quite a bit over the past few days and overall I'm very impressed with it. I told you about Nikon - both work well. Both are excellent lenses. In terms of image quality, you will find it very difficult to tell the difference between the two. Knowing what I know, I would choose D if it was my only choice. But it's not like that, so. .Back to Yonguo. For much less money you get: Outstanding sharpness. Just a hair less than all Nikons. If you don't enlarge the image by 400%, you won't see it. Really good shallow depth of field. I would say as good as Nikon's. The differences you'll probably notice: A.) Autofocus. Good enough for most purposes but not out of the box like Nikon. Works great in bright/medium light. Few hunts in low light. Not a deal breaker for me. ALSO - Found in the end, almost forgot to mention - this lens has a built in AF motor. So it works with your cheaper Nikon body. (Series 3000, 5000, 7000) B.) Color saturation. If you're like every other serious photographer in the world right now, post-edit everything. At the same time, the color saturation is slightly bright. I'm not saying it doesn't exist, just a little less. Easy to fix, sometimes even desirable. C.) Glare. This lens will not give you beautiful stars when the sun is shining! That gives some haze. Don't confuse this with the beautiful bokeh bubbles you get at night/in low light! (They look amazing.) Probably not very good coverage. But what do you want from a $68 lens? I have (many) filters that cost more than this lens! Summary: In this price range, I've detailed three of your options. If you have the money, the 1.8G is a great lens. Fast, quiet, takes beautiful pictures. 1.8D gives almost the same image quality but is a bit noisier and you should have a body with an autofocus motor. Yonguo creates stunning images for the situations you encounter. (And I'm talking beginner/intermediate/non-professional shooters). When you get to the point where ultra-fast focusing (like speed in pro sports) or color saturation in fine art is an issue, sell them. Take the $20 bump and buy the 50mm 1.4 Sigma Art series for $799. Otherwise, buy it with confidence! The thing rocks.