Weighing just 176g with an STM motor and f/2 aperture, this full-frame 40mm prime combines a natural field of view with low-light capability in an all-metal body. Its clickable aperture ring and USB-upgradeable firmware add tactile control and future-proofing rarely found at this budget tier. This lens is best for street and travel photographers who prioritize a featherweight, discreet setup without sacrificing full-frame coverage.
