The Canon EF 28–90mm 4–5.6 is a full frame SLR zoom lens, also often included as a

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. It is generally an inexpensive lens priced at the lowest end of the manufacturer's range so as to not add much to a camera kit' ...

with

Canon Canon or Canons may refer to: Arts and entertainment * Canon (fiction), the conceptual material accepted as official in a fictional universe by its fan base * Literary canon, an accepted body of works considered as high culture ** Western ca ...

EOS In ancient Greek mythology and religion, Eos (; Ionic and Homeric Greek ''Ēṓs'', Attic ''Héōs'', "dawn", or ; Aeolic ''Aúōs'', Doric ''Āṓs'') is the goddess and personification of the dawn, who rose each morning from her home at ...

film cameras. The maximum aperture is 4 at 28mm, reducing to 5.6 at 90mm. When set to 90mm, this will create a moderate amount of background blur for portrait photography. There are several versions of this lens. They all share an identical optical design of 10 lenses in 8 groups and 5 aperture petals. Versions I and II were available with either a DC auto focus motor or an ultrasonic USM motor. All other differences are purely cosmetic. All versions had plastic lens mounts and barrels. Some were available in silver or black colour. The lens is a very lightweight design, and has fast auto focus even without USM. Image quality suffers, though, particularly between 28–35mm and 80–90mm, 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 focal length range. This is due to

crop factor In digital photography, the crop factor, format factor, or focal length multiplier of an image sensor format is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital ca ...

. 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.

References

Canon EF lenses Canon kit lenses {{photo-stub

See also

References