About the product                  

                    The technical details behind this lens hood                    
Sigma LH850-03 Lens Hood is designed to prevent stray light from entering the lens in order to keep unwanted glare from affecting your photographs. This lens hood delivers a degree of protection for the lens from accidental impact.                    
Key features                    
Blocks Stray Light from Entering Lens                    
Extra Protection Against Impact                    
For 85mm f/1.4 EX Digital HSM Lens                    
Top three Reasons we think you will love this lens hood                    
Petal-Shaped Hood                    
Great Quality                    
Highly Reliable