L-lenses have big optical effectiveness and are characteristically designed with a stable development to endure consistent use and harsh disorders.[citation essential] They may possibly be identified by a red ring about the entrance component of the lens. Most current L lenses have sealing to assist resist dirt and drinking water. L-lenses are generally made use of by pros and really serious amateurs because of to their superior price level and big mass.
Most L sequence lenses share a selection of popular qualities:do:
Challenging assemble, crafted to stand up to the trials on the fields (some incorporating dirt and moisture resistant rubber seals).
At minimum one fluorite or ultra-decreased dispersion glass part, merged with super-very low dispersion glass and floor aspherical things.
Non-rotating entrance things, which are optimum for some filters (e.g. round polarizers).
Somewhat superior apertures in comparison to other Canon lenses in the same exact focal lengths.
Where exactly bundled, a fact ring-style USM (ultrasonic motor) and entire-time guide concentrating.
A few added info communication pins on Canon Extender EF suitable lenses, in comparison to the prevalent EF mount.
There are some lenses which include things like one or further of like technologies Still which are not specified L-lenses. L-lenses are characteristically outfitted with USM and/or IS, Nevertheless the optical efficiency is the key element criterion.
Greater sized L-lenses, like as the 70-200mm and one hundred-400mm zooms and extended focal length primes (300mm+), characteristically have an off-white barrel (characteristically referred to as the shade "putty") to lower warmth absorption below the sunlight that may well normally have an affect on the effectiveness of the lens, as properly as to discover Canon's lenses (for case in point at sporting functions). Still, shorter focal length L-lenses will probably be black (like as the Canon EF 24-70mm f/2.8L and all L-lens primes underneath 300mm, with the exception of the discontinued 200mm f/one.8L and recently introduced 200mm f/2.0L IS.). As a consequence L-lenses might possibly be acknowledged by possibly a lens barrel's off-white shade or, as on all L-lenses, the unique red ring on the lens barrel.
A gelatin filter holder, on the rear of an EF lens.
Huge angle L-lenses characteristically have a gelatin filter holder on the mounting level of the lens, which makes it possible for the photographer to reduce a decreased, sq. piece of gelatin out of a Much larger filter sheet and area it on the lens. On movie cameras, like are ordinarily employed to a fact the coloring temperature, Nonetheless on electronic cameras this is mostly pointless, as the coloring temperature may be corrected in software system. The mount is Even so characteristically chosen for neutral density gelatin sheets nevertheless, notably on distinct Huge-angle lenses Where exactly the protruding entrance aspect precludes the use of any screw-in filters. Some telephoto L-lenses, these types of as the EF 70-200mm zoom lenses, or the EF 300mm f/4L IS USM cs not have rear gelatin filter holders. Super-telephoto lenses these types of as the EF 500mm f/4L IS USM, or the EF 200mm f/2L IS USM cs have a rear 52mm drop-in filter holder, than might possibly be put to use to hold gelatin style filters.
The subsequent is a listing of L-lenses as well as discontinued lenses.
sixteen-35mm f/2.8L USM (Discontinued)
sixteen-35mm f/2.8L II USM
17-35mm f/2.8L USM (Discontinued)
24-105mm f/4.0L IS USM
28-70mm f/2.8L USM (Discontinued)
28-80mm f/2.8-4.0L USM (Discontinued)
28-300mm f/3.5-5.6L IS USM
35-350mm f/3.5-5.6L USM (Discontinued)
70-200mm f/4.0L IS USM
70-200mm f/2.8L IS USM
70-200mm f/2.8L IS II USM
one hundred-400mm f/4.5-5.6L IS USM
14mm f/2.8L USM (Discontinued)
14mm f/2.8L II USM
24mm f/one.4L USM (Discontinued)
24mm f/one.4L II USM
Normal & medium telephoto
50mm f/one.0L USM (Discontinued)
85mm f/one.2L USM (Discontinued)
85mm f/one.2L II USM
200mm f/one.8L USM (Discontinued)
200mm f/2.0L IS USM
200mm f/2.8L USM (Discontinued)
200mm f/2.8L II USM
300mm f/2.8L USM (Discontinued)
300mm f/2.8L IS USM
300mm f/4.0L USM (Discontinued)
300mm f/4.0L IS USM
400mm f/2.8L USM (Discontinued)
400mm f/2.8L II USM (Discontinued)
400mm f/2.8L IS USM
500mm f/4.5L USM (Discontinued)
500mm f/4.0L IS USM
600mm f/4.0L USM (Discontinued)
600mm f/4.0L IS USM
800mm f/5.6L IS USM
1200mm f/5.6L USM (extraordinary order only)
100mm f/2.8L Macro IS USM
180mm f/3.5L Macro USM
24mm f/3.5L II Tilt-Shift
On the again of Canon lenses is a six-digit code, which suggests Where by the lens was designed and despite the fact that.
Instance of a code "UV1212"
The very first letter 'U' represents the factory that prepared the lens. 3 conceivable primary letters are:
The 2nd letter 'V' represent the calendar year of produce
A = 1986, 1960
B = 1987, 1961
C = 1988, 1962
D = 1989, 1963
E = 1990, 1964
F = 1991, 1965
G = 1992, 1966
H = 1993, 1967
I = 1994, 1968
J = 1995, 1969
K = 1996, 1970
L = 1997, 1971
M = 1998, 1972
N = 1999, 1973
O = 2000, 1974
P = 2001, 1975
Q = 2002, 1976
R = 2003, 1977
S = 2004, 1978
T = 2005, 1979
U = 2006, 1980
V = 2007, 1981
W = 2008, 1982
X = 2009, 1983
Y = 2010, 1984
Z = 201one, 1985
The upcoming 2 digits represent the thirty day period of the lens is crafted.
The very last 2 digits are for inner Canon use.
As a consequence the instance of UV1212 implies the lens was prepared in the Utsunomiya, Japan factory in December 2007.
Canon EF lens mount
Canon EF Lens Perform Guide 2, web page fifteen)
Canon L Lens Collection Info
Groups: Canon L-Collection lensesHidden Groups: Content articles with weasel phrases from March 2009
All Content articles with unsourced statements
Content pieces with unsourced statements from November 2009
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