Meike MF 85 mm f/ 1.8 Lens

Very inexpensive for a fast prime in the short telephoto category. Sharpness is great in the center (even wide open) and respectable in the corners (at f/2.8 and higher). Chromatic aberration is present but easily removed in post processing.

The real standout feature of this lens is the electrical contacts that communicate with the body. This means you'll get full EXIF data in your  images, and also that you can electronically control the aperture from the camera. That means that all exposure modes (A, S, P, M) are available for use, unlike most other manual focus lenses. 

Bokeh is generally pretty smooth, owing to the 9-blade aperture design. 

There is a USB port for firmware upgrades.

Comes with front/back caps and hood. 

Weaknesses:

Build quality is a litle lacking. It feels pretty light/plastic-ish. Focus ring is a little loose in the track, but turns nicely. 

Another issues is that this lens presents itself to the camera as an APS-C lens, so if you have your full-frame body set to automatically go to Crop Mode, you will have to disable that to use this lens at full resolution. 

Biggest problem: For some strange reason, this lens completely disables the Sony IBIS system, so you will not get any image stabilitzation if your body provides it. I have tested this on A7II and A7III. I suspect Meike will fix this in a forthcoming firmware update

Comments:

Overall a very interesting lens. If Meike can fix that IBIS problem, I think this will be a real winner. Image quality is quite good and the price is exceptionally reasonable. 

Full review with sample images here: https://tightcamera.com/meike-85mm-f-1-8-for-sony-full-frame-review/