Though solidly built, the Canon EF 70-200mm f/4.0 L USM Lens is relatively light (25 oz / 705g). Actually it is very light and small compared to the much more substantial Canon EF 70-200 f/2.8 L Lens or the Canon EF 70-200mm f/2.8 L IS II USM Lens. This lens is not a burden to carry for long periods of time but has a high quality, solid feel.