Canon EF 100-300mm lens
Encyclopedia
The EF 100-300mm refers to three telephoto zoom lenses produced by Canon. They are of the EF lens mount
that is compatible with the EOS line
of cameras.
The three versions are:5.65.6L4.5-5.6 USM
Canon EF lens mount
Introduced in 1987, the EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens...
that is compatible with the EOS line
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...
of cameras.
The three versions are:5.65.6L4.5-5.6 USM
Lenses
| Attribute | 5.6 | 5.6L | 4.5-5.6 USM |
|---|---|---|---|
| Image stabilizer |  |
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| Ring USM | |
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| L-series | |
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| Diffractive Optics | |
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| Ultra-low dispersion glass element | |
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| Synthetic Fluorite glass element | |
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| Macro Macro photography Macrophotography is close-up photography, usually of very small subjects. Classically a macrophotograph is one in which the size of the subject on the negative is greater than life size. However in modern use it refers to a finished photograph of a subject at greater than life size... |
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| Short back focus | |
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| Maximum aperture Aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. The aperture determines how collimated the admitted rays are,... |
5.6 | 4.5 - 5.6 | |
| Minimum aperture Aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. The aperture determines how collimated the admitted rays are,... |
32 | 40 | |
| Weight | 685g | 695g | 540g |
| Max. Diameter x Length | 75 mm x 166.8 | 75 mm x 166.6 mm | 73 mm x 121.5 mm |
| Filter diameter | 58 mm | ||
| Horizontal viewing angle 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.... |
20°'- 6° 50' | ||
| Vertical viewing angle 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.... |
14°'- 4° 35'° | ||
| Diagonal viewing angle 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.... ; |
24°'- 8°15' | ||
| Groups/elements | 9/15 | 10/15 | 10/13 |
| # of diaphragm Diaphragm (optics) In optics, a diaphragm is a thin opaque structure with an opening at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture... blades |
8 | ||
| Closest focusing distance | 2 m | 1.5 m | |
| Release date | March 1987 | June 1987 | June 1990 |