- Sharpness: a razor with a score of 2.8, as many people note, including in tests, is already roughly equivalent to 2.2 on the scale. At 2.8, the aperture is good. Small and lightweight (on the 60D, it is not apparent at all, neither in terms of size nor weight), and it does not take up much space. When compared to the 135 f/2L, which also lathers nicely (and lathers on the open already nowhere colder), it lathers quite well. Excellent hues, and contrast between them. Inexpensive.
- Constructive criticism: there is a crunching sound when focusing (including autofocus), and the USM is not as quick as some of the others that are in good L. Even in well-lit environments, autofocus suffers from frequent delays. The trunk leaves, I endorse it, and I twist it to infinity after use (to the most extreme position of the trunk's interior anatomy). The trunk is wobbly, and although I'm not sure how this impacts the optical qualities, it's likely not in the best way possible. If the camera does not have an AF adjustment, you will need to check the front-back focus using a target before making your purchase. A substantial amount of CAs can be seen on open holes.