Let's compare the EF 24mm f/2.8 IS USM lens to the EF-S 24mm f/2.8 STM lens. Both lenses will fit on a crop body, and will yield the same field of view and depth of field. If you were able to mount the EF-S lens on a full frame (and avoided hitting the mirror), you would find that both the EF-S and EF lenses yielded the same field of view and
Review manufacturer specifications and detailed lab measurements for the Canon EF 50mm f/1.8 STM Lens. Compare the specs and measurements of this lens with other lenses.
Canon RF 24mm f/1.8 Macro IS STM Key Features. Dedicated, programmable Control Ring with click-stop operation. Equivalent to approximately 38mm coverage when used on cameras with. APS-C size image sensors. Impressively compact and light at only 270g. Circular (9 blades) aperture for beautiful, soft backgrounds. Lens Format: APS-C, Full Frame.