Know it: Lomo Anamorphic Lenses
So, there is a look that can only be achieved with a certain dedication to craft. This walk through of what the Lomo Anamorphic 35MM and 50MM look like and are capable of is great.
Things to learn:
sometimes a lens looks sharpest at a higher f or t stop.
lens breathing is a real thing to be aware of if fishing for focus on hand held.