• Paul B

    My answer is “whenever it needs it”. That depends on how often I change lenses and under what conditions I do so. That’s meant twice in the last two months.

    Really surprised that more than 50% of people have never cleaned theirs. Do a test shot for dust and see what it looks like!

  • A & P Bike Photo

    I may have only done it once, but I only had it Christmas 2014