Lenses for DSLR
Canon EF 17-40mm f/4L USM
SpecificationsSpecifications in detail
Optical Features / Specifications
- Angle of View (Horizontal, vertical, diagonal)
93° - 49°20', 70°30' - 34°, 104° - 57°30'
- Lens Construction (Elements/Groups)
12/9
- Number of Diaphragm Blades
7
- Minimum Aperture
22
- Closest Focusing Distance (m)
0.28
- Maximum Magnification (x)
0.24 (at 35mm)
- AF Actuator
USM¹
Accessories
- Lens CapE-77U / E-77II
- Lens Hood
EW-83E
- Lens Case/Pouch
-
- Magnification with Extension Tube EF12 II
0.83 - 0.32
- Magnification with Extension Tube EF25 II
1.02 - 0.70¹
Physical Specifications
- Filter Diameter (mm)
77
- Max. Diameter x Length (mm)1
83.5 x 96.8
- Weight (g)
500
¹ Mechanical full-time manual focusing built-in
¹ Only compatible at tele
- Lens dimensions when in retracted state