Canon 24-105mm L Series Lens

People sometimes turn their nose up at this lens because it only has an aperture of F4 so they think it to be optically inferior. However its an L-series lens, and as far as Canon are concerned, within its limitations it has the same high-quality specification as the others.

On a day-to-day basis I don’t particularly like working below F5.6, because most lenses don’t work as well at wide apertures, along with getting lower resolution on the edges and more vignetting. In reality, due to the sensitivity of modern cameras, most of the time the only real advantage of having fast lenses is a shallow depth of field. Personally I think when you’re working with larger chip sizes in fast moving situations this can be a handicap rather than an advantage.

EF 24-105mm f/4L IS USM

Offering a greater focal-length range and a more compact construction than other standard zooms, the EF 24-105mm f/4 IS USM is the ideal lens for the professional travel photographer.

Benefits

L-series optics

Lightweight 4.3x zoom

Constant maximum f/4 aperture throughout zoom range

Three-stop Image Stabilizer

Super UD and aspheric lens elements

Fast autofocus

Super Spectra coatings

Circular aperture provides pleasing background blur

Soft case and lens hood

Detailed Features

Take a more detailed look into the Canon EF 24-105mm f/4L IS USM

L-series quality

The L-series is Canon’s flagship professional lens range, representing the best in precision-designed EF optics. L-series lenses combine superior performance with superlative handling, and are resistant to dust and moisture.

Lightweight and versatile

The EF 24-105mm f/4L IS USM offers a 4.3x zoom ratio, from wide angle to medium telephoto. It is highly portable, weighing just 670g.

Fixed aperture

The f/4 maximum aperture of the EF 24-105mm f/4L IS USM is fixed throughout the lens’ focal-length range, so shutter speeds will not change as the lens is zoomed.

Image Stabilizer

The EF 24-105mm f/4L IS USM features Canon’s three-stop Image Stabilizer (IS), making it ideal for handheld work. IS permits the use of shutter speeds up to three stops slower than normal, with no perceptible increase in image blur from camera shake.

Super UD and aspherical lens elements

The lens incorporates a Super UD (ultra-low dispersion) glass element to eliminate secondary chromatic aberrations. Aspherical lens elements correct for spherical aberrations. The result is crisp, high-contrast, undistorted optical performance throughout the zoom range, without colour fringing at high-contrast edges.

Ultrasonic focusing

A ring-type ultrasonic motor drives autofocus extremely quickly, and in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Furthermore, full-time manual override is available, making it possible to adjust focus without leaving AF mode.

Super Spectra coating

Super Spectra coatings ensure accurate colour balance and enhance contrast. They also reduce flare and ghosting – a common problem caused by light bouncing off a camera’s sensor.

Smooth background blur

A virtually circular aperture diaphragm gives out of focus regions a softer, more uniform feel. Sharp foreground objects stand out against a smooth blurred background.

Image size

–

35mm film equivalent focal length

–

Angle of view (horzntl, vertl, diagnl)

74º – 19º 20′,

53º – 13º,

84º – 23º 20′

Lens construction (elements/groups)

18/13

No. of diaphragm blades

8

Minimum aperture

22

Closest focusing distance (m)

0.45

Maximum magnification (x)

0.23 (at 105mm)

Distance information

Yes

Image stabilizer

3-stops

AF actuator

Ring USM ¹

Filter diameter (mm)

77

Max. diameter x length (mm)

83.5 x 107

Weight (g)

670

Magnification – Extension Tube EF12 II

0.40-0.12

Magnification – Extension Tube EF25 II

0.61-0.27 ¹

Lens Cap

E-77U / E-77II

Lens hood

EW-83H

Soft case

LP1219

Extenders EF1.4x II and EF2x II

Not compatible

Footnotes

AF actuator – ¹ Mechanical full-time manual focusing built-in

Magnification – Extension Tube EF25 II – ¹ Only compatible at tele.