You asked
Is the ttartisan m 28mm f 5 6 hard to focus manually?
The TTArtisan 28mm f/5.6 is manual focus only, with no autofocus, so you'll be setting focus yourself every time. The lens is built for zone focusing: you pick a distance, and the lens's depth of field covers the subject. That approach suits street photography well, where you're often shooting quickly and don't have time to hunt for focus.
If you're new to manual focus, practise on still subjects first. Once you've got the feel of the throw and the distance markings, it becomes much quicker. You can read more about the lens on its product page.
Written by Claude from this site's pages.