The fastest 135mm telephoto lens in its class. Ideal for indoor sports and portraits with background blur. Two UD-glass elements correct secondary spectrum for outstanding sharpness and color. Compatible with Extender EF 1.4x II and 2x II.
Depth of Field Data
| Depth-of-Field Data for EF135mm f/2L USM |
| [unit:m] |
| D | F2 | 2.8 | 4 | 5.6 | 8 | 11 | 16 | 22 | 32 | | ND | FD | ND | FD | ND | FD | ND | FD | ND | FD | ND | FD | ND | FD | ND | FD | ND | FD | | Inf. | 254 | Inf. | 179 | Inf. | 127 | Inf. | 90.8 | Inf. | 63.6 | Inf. | 46.2 | Inf. | 31.8 | Inf. | 23.2 | Inf. | 15.9 | Inf. | | 10 | 9.64 | 10.39 | 9.49 | 10.56 | 9.30 | 10.82 | 9.04 | 11.18 | 8.69 | 11.78 | 8.28 | 12.63 | 7.68 | 14.34 | 7.07 | 17.14 | 6.24 | 25.42 | | 3 | 2.97 | 3.03 | 2.96 | 3.04 | 2.94 | 3.06 | 2.92 | 3.09 | 2.88 | 3.13 | 2.84 | 3.18 | 2.77 | 3.27 | 2.70 | 3.38 | 2.58 | 3.59 | | 2 | 1.99 | 2.01 | 1.98 | 2.02 | 1.98 | 2.03 | 1.97 | 2.04 | 1.95 | 2.05 | 1.93 | 2.07 | 1.90 | 2.11 | 1.87 | 2.15 | 1.82 | 2.23 | | 1.5 | 1.49 | 1.51 | 1.49 | 1.51 | 1.49 | 1.51 | 1.48 | 1.52 | 1.47 | 1.53 | 1.46 | 1.54 | 1.45 | 1.55 | 1.43 | 1.58 | 1.40 | 1.61 | | 1.2 | 1.19 | 1.20 | 1.19 | 1.21 | 1.19 | 1.21 | 1.19 | 1.21 | 1.18 | 1.22 | 1.18 | 1.22 | 1.17 | 1.23 | 1.16 | 1.24 | 1.14 | 1.27 | | 1.0 | 0.998 | 1.002 | 0.997 | 1.003 | 0.995 | 1.005 | 0.993 | 1.007 | 0.990 | 1.010 | 0.987 | 1.014 | 0.981 | 1.020 | 0.973 | 1.028 | 0.962 | 1.042 | | 0.9 | 0.898 | 0.902 | 0.897 | 0.903 | 0.896 | 0.904 | 0.895 | 0.905 | 0.892 | 0.908 | 0.890 | 0.911 | 0.885 | 0.916 | 0.880 | 0.921 | 0.871 | 0.932 | |
| * D = Focusing Distance ND = Near Distance FD = Far Distance Inf. = Infinity |