Construction : Anodized Aluminum / Tempered Glass
Depth Rating : 100 m (330')
Lenses :
Fits Close-UP Lens 125 (requires M67-M62 Step Down Ring)
Fits Canon EF100 mm f/2.8L Macro IS USM lens
Dimensions (Diam. x Depth) : 10.3 x 5.4 cm (4.1 x 2.1")
Weight : 0.21 kg (7.4 oz)