Ideal complement to the 17-55 IS

Very good visor original cannon that team now 17-55mm 2.8 IS lens. Incidentally, it seems unthinkable that the book canon not original: very petty and annoying for Mr. Canon
The latter has replaced the visor "no mame" that I had before and it passed away. Involved, breaking the small plastic tab for holding the lens hood in position.
The original model is more solid, durable. The black felt presence provides a surface that is not perfectly smooth, matt (absorbent). This allows further reducing the risk of little reflection.
But the adjustment to the lens dimensions is perfect. No play.
Remains painful, this accessory is not given.

Naturally one may prefer his version "noname" 4x cheaper, despite everything, I recommend making an extra effort to acquire rather model. If the form and function are the same, for the use and touch, the original version is preferable. Rest the exasperation of having to purchase an option that the other objectives brands provide original.
I have since abandoned the "noname" versions for my other gun targets including EF 10-22mm.