Canon EF 28-80mm lens

The EF 28–80mm f/3.5–5.6 is a zoom lens produced by Canon Inc. for their series of EOS single-lens reflex cameras.

It is a totally separate classification of lens, much larger and up to three times heavier, sharing very little if any features with the non-L versions.

The first iteration of the f/3.5–5.6 ("USM" in the chart below) non-L lens is identified by the metal mount and distance scale.

USM versions II through V deleted the DoF window and are considerably lighter in weight and smaller in diameter.

They retain the USM feature albeit with a lower-cost, slower but more compact micro-motor version.