Canon EF-S 24mm f/2.8 STM Pancake Lens

A highly portable pancake lens that’s ideal for travel and street photography. Its advanced optical design ensures great image quality, while a large f/2.8 maximum apertureAPERTUREAperture, shutter speed and ISO form what is known as the exposure triangle in photography. Aperture refers to an opening inside the lens, similar to the iris of your eye, that changes in diameter to control the amount of light that enters a camera. Aperture is expressed in f-stops: the lower the number, the larger the aperture, e.g. f/1.4 is larger than f/8. A larger (or wider) aperture allows more light to pass through the lens to the sensor (film) as a picture is taken, particularly useful in low-light conditions. A larger aperture also produces a shallower depth-of-field, and thus more background blur. allows hand-held low-light shooting. STM focusing delivers smooth, near-silent AF when capturing movies.

Portable "pancake" design

At just 22.8 mm deep, and weighing just 125g, the EF-S 24mm f/2.8 STM is a highly portable lens that lets you take your EOS anywhere. Its diminutive design makes it discreet too – ideal for street photography.

Natural perspective

The 24mm focal lengthFOCAL LENGTHMeasured in mm, it is the distance from the focal point of a lens (its centre or curved mirror where light converges) to the plane of the image sensor (film) when an object is in focus. A shorter focal length lens sees a wider image and a longer focal length brings your subject closer. For example, a 15mm lens sees a very wide image and is perfect for landscape photography. Conversely, a 500mm lens sees a very narrow image, brings the subject much closer and is thus great for subjects that are far away, like a bird in a tree. With zoom lenses, its minimum and maximum focal lengths are indicated, for example, as 24-105mm. A zoom lens allows you to change the lens’ focal length, with shorter (wide-angle) and longer (telephoto) options, whereas a fixed focal length lens requires you to move back and forth to find the correct image composition. when used on an APS-C EOS body gives the same angle of view as a 38mm lens on a full-frame DSLR. That’s close to that of the human eye, so your pictures will have a natural look and feel about them.

Smooth, quite focusing

Near-silent STM focusing locks on quickly when shooting still photos, and provides smooth focus transitions when capturing movies, for footage that’s free from distracting focusing noiseNOISEThe appearance of random pixels scattered over a photo, similar to the grain effect seen in film photography, which degrades photo quality almost as if it is stained. It occurs when taking photos in low-light conditions, with very slow shutter speeds on high sensitivity (ISO) settings. It is caused by amplification done by the sensor when high ISO settings are used. You can counteract digital noise by lowering the sensitivity (ISO) setting of your camera - the lower the ISO setting, the lower the noise in the image. Typically cameras with larger sensors (like full-frame cameras) will inherently produce less noise due to larger pixels on the sensor..

Wide aperture for low-light shooting

A fast maximum aperture of f/2.8 lets in lots of light, letting you shoot in dark conditions without using flash. It’s ideal for creating shallow depth-of-field effects too, letting you isolate your subject against a soft, out-of-focus background.

Advanced optical design

Enjoy razor-sharp performance right across the frame, with high resistance to flareFLAREOccurs when a point light source such as the sun or an artificial light (that is brighter than the rest of the scene), hits the front element of a lens resulting in a lack of contrast, haze, or unwanted semi-transparent objects being present in the image. You can avoid lens flare with a lenshood or filters, however, the effect is also useful for bringing artistic elements into an image, such as sun rays peaking out from behind a rock formation. and coloured fringing. Get as near as 16cm to small subjects for a close-up view of the world.

Features

• EF-S mount lens / APS-C format
  
• 38mm (35mm equivalent)
  
• One aspherical element
  
• Optimised lens coatings
  
• STM AF motor supports movie servo AF
  
• Micro-stepping drive aperture mechanism
  
• Full-time manual focus override
  
• Rounded seven-blade diaphragm
  
• Slim design measures less than 1"-thick