SUMMARY
Photographer Carey West expresses a strong opinion that f/1.2 apertures are largely impractical and often a detriment to image quality. He suggests that the extremely shallow depth of field at such wide apertures makes precise focusing difficult, leading to missed shots. West implies that many photographers opt for f/1.2 lenses for status rather than genuine photographic need, and that other apertures offer better overall performance and usability.
TAKEAWAYS
f/1.2 apertures are criticized for being impractical.
Extremely shallow depth of field at f/1.2 makes focusing difficult.
f/1.2 lenses may be chosen for status over utility.
Other apertures are suggested to offer better performance.