Canon EF 100-400mm f4.5-5.6 L IS USM
Canon EF 100-400mm f4.5-5.6 L IS USM Specifications and Review
Brief Review
The EF 100-400/4.5-5.6L IS USM is Canon's best (and longest) telephoto zoom. Though perhaps not quite as sharp (and in most cases not quite as fast) as Canon's telephoto primes like the 135/2L, 200/2.8L, 300/4L IS and 4005.6L it has the advantage of covering all those focal lengths with one lens - and it's image stabilized (of the smaller telephoto primes, only the 300/4L is Image Stbilized). In addition, the 100-400/4.5-5.6L IS USM is usually sharper then shorter prime lenses used with a TC. It's an ideal lens for sports and wildlife as long as you don't need a fast aperture. It's one of only a handful of Canon lenses that uses a push-pull zoom action, but most users get used to that fairly quickly and some even prefer it. Here's a link to a detailed review of the EF 100-400/4.5-5.6L IS USM which includes comparisions with the 300/4L USM and 70-300/4-5.6IS USM and comments on use with TCs.
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| Model | Canon EF 100-400mm f4.5-5.6 L IS USM |
| Link to Current Pricing | EF 100-400mm f4.5-5.6 L IS USM |
Production Dates  |
1998 - current |
| Comments | Canon's best telephoto zoom. Can't quite match the sharpness of the 300/4L IS or 400/5.6L primes, but much more versatile and more than sharp enough for most users. It's a push-pull zoom which some don't like, but most can get used to. A full review of the 100-400is can be found HERE |
| Field of View
(degrees) Horizontal,Vertical, Diagonal Full Frame - 36x24mm APS-C - 22.5x15mm |
Full Frame Wide : H - 20.4 : V - 13.7 : D - 24.4 Full Frame Tele : H - 5.2 : V - 3.4 : D - 6.2 APS-C Wide : H - 12.8 : V - 8.6 : D - 15.4 APS-C Tele : H - 3.2 : V - 2.1 : D - 3.9 |
| Full Frame FOV equivalent with lens on APS-C body |
160-640 mm (1.6x multiplier) |
| Full Frame FOV equivalent with lens on APS-H body |
130-520 mm (1.3x multiplier) |
| Image Stabilization |
up to 2 stops |
| IS Panning Mode |
Manual Selection |
| Length | 189 mm (7.44 inches) |
| Weight | 1360 gm (45.99 oz.) |
| Maximum Diameter | 92 mm (3.62 inches) |
| Lens Mount Material |
Metal |
| Lens Color |
White |
| Filter Size | 77 mm |
| Filter Rotation |
Filter does not rotate |
| Internal Zooming |
No (extends on zooming) |
| Focusing |
Internal Focusing (Length constant) |
| Focus Range Setting(s) |
Yes, has selectable focus range(s) |
| AF motor |
USM |
| Distance Scale | Yes, has distance scale |
| Closest Focus | 1.8 m (5.9 ft) |
| Maximum Magnification | 0.2x |
| EF25 magnification range |
0.35x - 0.07x |
| Canon TC compatibility |
Yes, Canon TCs can be used |
| Weathersealing |
Not weathersealed |
| Lens Hood |
ET-83C |
| Tripod Mount |
Tripod Mount Ring B |
| E-TTL II Support |
Yes |
| Elements/Groups |
17/14 |
| Special Glass Elements |
Yes, 1 Fluorite element, 1 Super UD element |
| Diaphragm Blades |
8 |
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