good, cheap alternative to Canon Lens Hood

The shutter snaps at my lens perfectly, not too light but not too tightly.
Similarly, one can also the bezel upside down mounted to save space during transport.
On the inside of the plastic is slightly roughened. Canon used for or a special "felt", which I can not judge if that makes a great difference.
Over time, the SPF has for me rather proved most useful, because I can save me so after each photo again aufzustecken the lens cap. Or perhaps it just does not do, and then to have to be careful that I do not touch it with your hand OA accidentally. I think the cloaks over your shoulder, the glass is perfectly adequate already protected by the lens hood. Just the (brief) Verstauhen in the camera bag.
But that's a matter of opinion and everyone must think or to find out if you really need a lens hood for themselves. If, then you do with this one for half the price, unlike the Canon nothing wrong.