However:
Who frequently switched on this diaphragm and is ausschiebt soon have problems.
Soon crack at the folded edges ...
Now I have a hard plastic panel (also not by CANON but of Enjoyyourcamera), which also turn around and easy to store so space-saving front of the lens, however, is much more durable and will not be deformed when into a travel bag. In addition, it is not screwed but simply snapped into the lens holders ...
NOT BUY recommendation for this product!
