The Canon EF 600mm is a super-telephoto

lens A lens is a transmissive optical device which focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (''elements ...

made by

Canon Inc. is a Japanese multinational corporation headquartered in Ōta, Tokyo, Japan, specializing in optical, imaging, and industrial products, such as lenses, cameras, medical equipment, scanners, printers, and semiconductor manufacturing equipment.< ...

The lens has an EF mount to work with the

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 ...

line of cameras. *4L USM lens was released in November 1988 (923,000 yen). *4L IS USM lens was released in September 1999 (1,290,000 yen). *4L IS II USM lens was announced in February 2011 (US$12,999 at release, now US$11,499). *4L IS III USM lens was announced in September 2018 (US$12,999). The IS version has more lens groups and elements, and the weight was reduced from to for the first IS version. The weight was further reduced to for the 2nd IS version. The weight has been further reduced to for the 3rd IS version. All lenses are compatible with the

Canon Extender EF The Canon Extender EF lenses are a group of teleconverter lenses made by Canon. These lenses are used between any compatible EF type lens and any of the Canon EOS line of cameras. When used with a compatible lens, they will multiply the focal le ...

teleconverters.

Specifications

References

External links

600 __NOTOC__ 600 ( DC) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 600 for this year has been used since the early medieval period, when the Anno Domini calendar era became the ...

{{photo-stub