I have my old Canon lens cap replaced by the new version because I Tamron and Sigma, the intervention was accustomed ready and she did not want to miss even with Canon. Especially when using a lens hood, there is often the problem so that the Attaching the Lens Cap is quite a Gefrickel. The intervention remedy. The processing of the new Canon-cover is great, they are stuck, see wertig out (I feel it - compared to the old version - as a visual enhancement) and the price is right.