The cover fits almost bombproof on the lens. One point deduction for the thickness almost double compared to the E-67. At the EF-S 18-135 STM with screwed filter and an attached lid, everything looks a little odd. For this the lid can be attached and detached without problems - even with attached lens hood. Those who do not use this, is better off with the leaner E-67. Ultimately a matter of taste - and at the price you can still have both caps ...