 "Olympus M.ZUIKO DIGITAL ED 40-150mm f 2.8 PRO Lens"@en Lens (V315050BU000)"@en
 "EF 20mm f/2.8 USM"@en "Canon EF USM | Canon Online Store"@en
"Wide-Angle Lens"@en 
 Focal Length & Maximum Aperture 20mm 1:2.8 Lens Construction 11 elements in 9 groups Diagonal Angle of View 94° Focus Adjustment Rear focusing system with USM Closest Focusing Distance 0.25m / 0.8 ft. Filter Size 72mm Max. Diameter x Length, Weight 3.1" x 2.8", 14.3 oz. / 77.5 x 70.6mm, 405g