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With the large maximum aperture, excellent background blur is possible even with a fast shutter speed. The aspherical lens element makes the lens compact and corrects spherical aberrations. The image is sharp even at the edges. Lead-free glass is used.
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MTF Charts
| Focal Length & Maximum Aperture | 28mm 1:1.8 |
| Lens Construction | 10 elements in 9 groups |
| Diagonal Angle of View | 75° |
| Focus Adjustment | Rear focusing system with USM |
| Closest Focusing Distance | 0.25m / 0.8 ft. |
| Filter Size | 58mm |
| Max. Diameter x Length, Weight | 2.9" x 2.2", 10.9 oz. / 73.6 x 55.6mm, 310g |
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