It's wide-angle focal range is 8mm to 15 mm. With a solidly built frame and high-quality construction you can take this Canon lens anywhere. Its weather proofing protects you from dust and moisture while the sub-wave length structure coating eliminates ghosting and abortions and flares.
|Focal Length & Maximum Aperture||15mm 4.0|
|Lens Construction||14 elements in 11 groups|
|Diagonal Angle of View||180ø|
|Focus Adjustment||Lens extension via inner focusing and focus cam plus floating mechanism|
|Closest Focusing Distance||0.16m / 6.2 in.|
|Filter Size||Rear Gel Holder (accepts up to 3 pre-cut gel filters)|
|Max. Diameter x Length, Weight||3.1 x 3.7 in, 19.1 oz. / 78.5 x 83.0mm, 540g|