u/palongzky143

I have a canon 50mm f1.8 Ii lens. Whenever Im not using it I just leave it on the shelf and I just noticed that a bit of dust has started to show up inside it.

the photo here shows a bit of dust(can't seem to show the rest).

is this normal? I'm planning on getting it cleaned next week but I just didn't expect this amount of dust particles to get inside the lens.