Materials: Rubber Anodized Aluminum Weight: 1 oz (28 g) Blocks Stray Light Extendable 3-in-1 Hood Compact, Collapsible Design - Protects Lens from Accidental Impact Screw-In Design - Ultra-Thin Internal Aluminum Filter Ring Ideal for Telephoto Lenses Note: All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design. The 3-in-1 hood is extendable and provides three stages of shading. At its collapsed setting, the hood provides shading for 28mm lenses (in full-frame format, 18mm with APS-C format sensors), without vignetting. At its middle stage, it covers lenses up to 50mm (full-frame format, 35mm with APS-C). Fully extended, it covers lenses 70mm and up (full-frame format, 55mm with APS-C). Additionally, in its collapsed stage the hood protects your lens from accidental impact, and saves space during transport. It attaches to your camera's lens via the threaded internal ring. The hood's ridged interior helps minimize light reflection. Brand No Brand SKU WA285EL0REV30NAFAMZ-208052 Model 35001602