This Sony SEL28F20 lens features a 9-blade circular aperture and ED glass with multicoating, so you can easily capture clear photos with minimal ghosting using your a7-series, 35mm full-frame camera.
I tried using my sony A7II with older MF lenses for a while. They work, but I had some shots that were out of focus. I bit the bullet and shelled out the $ for this lens. I mostly use wide angle and prefer to get up close, mostly events and festivals. I wish I’d have bought it sooner.