Focal Length & Maximum Aperture |
EF 17-40mm f/4L USM Lens: |
17 - 40mm; 1:4 |
EF 50mm f/1.4 USM: |
50mm 1:1.4 |
|
Lens Construction |
EF 17-40mm f/4L USM Lens: |
12 elements in 9 groups |
EF 50mm f/1.4 USM: |
7 elements in 6 groups |
|
Diagonal Angle of View |
EF 17-40mm f/4L USM Lens: |
104° - 57° 30' |
EF 50mm f/1.4 USM: |
46° |
|
Focus Adjustment |
EF 17-40mm f/4L USM Lens: |
Inner focusing system with USM |
EF 50mm f/1.4 USM: |
Overall linear extension system with USM |
|
Closest Focusing Distance |
EF 17-40mm f/4L USM Lens: |
0.28m / 0.9 ft. |
EF 50mm f/1.4 USM: |
0.45mm / 1.5 ft. |
|
Zoom System |
EF 17-40mm f/4L USM Lens: |
Rotating Type |
|
Filter Size |
EF 17-40mm f/4L USM Lens: |
77mm |
EF 50mm f/1.4 USM: |
58mm |
|
Max. Diameter x Length, Weight |
EF 17-40mm f/4L USM Lens: |
3.3" x 3.8", 1.1 lb. / 83.5 x 96.8mm, 500g |
EF 50mm f/1.4 USM: |
2.9 x 2.0, 10.2 oz. / 73.8 x 50.5mm, 290g |
|
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