There are not a lot of native lenses found in the Canon EF-M series, but this is changing with a number of new offerings. There is a new 18-150mm general purpose zoom that looks pretty good. The new lenses include a rather specialized lens, the EF-M 28mm f/3.5 Macro IS STM, a purpose built macro lens.
This lens is different. The lens is designed from the start to be a macro lens, not a general purpose lens that also does a little macro as a secondary feature. There are a number of features that are quite unusual found on this macro lens.
The first, and most obvious feature is the built-in ring light, a rather useful feature in very close macro photography where light is everything. A set of bright white LEDs is arranged on the front of the lens behind a diffuser. The LED’s are powered by the camera, no separate battery is necessary.