Canon EF 24–105mm lens

The EF 24–105mm f/4L IS USM is an EF mount wide-to- telephoto zoom lens. It was introduced by Canon in 2005 to complement the well-regarded 17–40mm f/4L USM and 70–200mm f/4L USM.

The EF 24–105mm f/4L IS USM lens is often compared to the other L series zoom of comparable range, the 24–70mm f/2.8L USM, losing one full stop but gaining [1]

This EF 24–105mm f/4L IS USM lens is available in kits packaged with the EOS 5D Mk II, 5D Mk III and EOS 6D.

The EF 24-105mm f/3.5-5.6 IS STM is a newer 'low cost' alternative to the EF 24–105mm f/4L IS USM. It has the same zoom range, but a non constant aperture range which is typical of many non-professional lenses. Both lenses have image stabilization (IS). The EF 24–105mm f/4L IS USM and IS II USM version use a ring type Ultrasonic motor, whereas the new EF 24-105mm f/3.5-5.6 IS STM uses Canon's STM Stepper motor, which is quieter during video usage. The new EF 24-105mm f/3.5-5.6 IS STM weighs slightly less (525 g / 18.52 oz versus 670 g / 23.6 oz) and costs roughly half the price of the EF 24–105mm f/4L IS USM. [1] [2] [3] [4]

An improved version of the EF 24–105mm f/4L IS USM, the EF 24–105mm f/4L IS II USM, was announced on August 2016. It has a better Image Stabilizer and less distortion. [5] The EF 24–105mm f/4L IS II USM lens is available in kits packaged with the EOS 5D Mk IV.

On a 1.6x APS-C camera body, this lens' field of view is equivalent to that of a 38–168mm lens on a 35mm film camera; this is a very useful range, covering most normal to medium-telephoto needs.

Specs EF 24–105L IS USM lens

Optical scheme of Canon EF 24–105L IS USM lens
  • The lens includes sealing against dust and water, although it is not waterproof.
  • It includes an 8-bladed curved diaphragm which remains nearly circular from f/4 to f/8.
  • Like many Canon L-series lenses, it uses common 77mm filters.
  • Characteristic of zoom lenses, it exhibits some barrel distortion at its shortest focal length.
  • It contains a single Super-UD glass element (dark blue in diagram) and 3 aspherical lens elements (green in diagram).