The fact that the Oly is very small 45mm, it fits well with up setter rubber lens hood in my camera bag, which I have never unscrew. So that is 45mm M.Zuiko become be final to my always-top lens.
The fact that the plastic ring on which the Gummigeli is fixed, almost 1cm long, the lens is a little lower and is so well protected. I have therefore even dispensed with a UV filter as protection. However, Geli is thus not suitable for short focal lengths, which is not mentioned in the article description!
When M.Zuiko 14-42mm arise from strong to weak 14-18mm vignetting.
For the M.Zuiko 45mm I can but give an unconditional buy rating - 5 stars !!!