If the lens hood is essential to become a photographer, there are models more or less practical ... Certainly, many are great and effective blow, but suddenly not easy to store, and generates vignetting in large angle (it just appears on the photo). It is virtually the same size as the rigid, it is a reasonable size to be effective without being visible in wide angle (25 mm ... a little more and 18 mm) but has the distinction of be flexible, which means that once folded, it takes up much less space in the wallet. A good compromise then, and without breaking the bank.
