The PROMASTER SystemPRO Universal Lens Hood is specially designed for the wide focal lengths required by today's digital SLR cameras. It's petal shape design is instrumental in helping to reduce glare while minimizing the potential for vignetting of your image. The unique two-piece design of this hood allows you to quickly and easily reverse the hood for storage. The mounting collar accepts your standard lens cap for the ultimate in protection. Fits Lenses with a 77mm Filter Size