Canon EF 28-90mm lens
Encyclopedia
The Canon EF 28-90 mm is a lens included as a kit lens
with Canon
EOS
film cameras.
The maximum aperture is 4 at 28mm, reducing to 5.6 at 90mm. When focused at 90mm this will create background blur for portrait photography.
It is a very lightweight design, and has very fast auto focusing even without USM. Image quality suffers particularly between 28-35mm and 80-90mm however, and there is heavy vignetting when used wide open.
For digital EOS cameras with APS-C
sensors, the EF-S 18-55mm lens
covers the same range. This is due to crop factor
. EF-S lenses only work with Canon 1.6x crop cameras, which results in an angle of view
roughly equivalent to that of a 29-90mm lens on a 35mm camera. Like the 28-90mm, the 18-55mm is also a kit lens.
Kit lens
A kit lens is a "starter" lens which can be sold with an interchangeable-lens camera such as a single-lens reflex camera. The kit consists of the camera body, the lens, and various accessories usually necessary to get started in SLR photography. A kit lens can be sold by itself; ie; not in a kit...
with Canon
Canon Inc.
is a Japanese multinational corporation that specialises in the manufacture of imaging and optical products, including cameras, camcorders, photocopiers, steppers and computer printers. Its headquarters are located in Ōta, Tokyo, Japan.-Origins:...
EOS
Canon EOS
The Canon EOS autofocus 35 mm film and digital SLR camera system was introduced in 1987 with the Canon EOS 650 and is still in production as Canon's current DSLR system...
film cameras.
The maximum aperture is 4 at 28mm, reducing to 5.6 at 90mm. When focused at 90mm this will create background blur for portrait photography.
It is a very lightweight design, and has very fast auto focusing even without USM. Image quality suffers particularly between 28-35mm and 80-90mm however, and there is heavy vignetting when used wide open.
For digital EOS cameras with APS-C
APS-C
Advanced Photo System type-C is an image sensor format approximately equivalent in size to the Advanced Photo System "classic" size negatives...
sensors, the EF-S 18-55mm lens
Canon EF-S 18-55mm lens
The Canon EF-S 18-55mm lens 3.5-5.6 is a wide-angle to mild telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 28.8-88mm, and it is the standard kit lens on Canon's consumer DSLRs.There have been four releases...
covers the same range. This is due to crop factor
Crop factor
In digital photography, a crop factor is related to the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital cameras, relative to 35 mm film format as a reference. In the case of digital cameras, the imaging device would be a...
. EF-S lenses only work with Canon 1.6x crop cameras, which results in an angle of view
Angle of view
In photography, angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view....
roughly equivalent to that of a 29-90mm lens on a 35mm camera. Like the 28-90mm, the 18-55mm is also a kit lens.