Canon EF 70-300mm f/4.5-5.6 DO IS USM
| Maker | Canon |
| Model | EF 70-300mm f/4.5-5.6 DO IS USM |
| Fullframe Coverage | YES |
| Field of View
(degrees) Horizontal,Vertical, Diagonal Full Frame - 36x24mm APS-C - 22.5x15mm |
Full Frame Wide : H - 28.8 : V - 19.5 : D - 34.4 Full Frame Tele : H - 6.9 : V - 4.6 : D - 8.3 APS-C Wide : H - 18.3 : V - 12.2 : D - 21.9 APS-C Tele : H - 4.3 : V - 2.9 : D - 5.2 |
| Min Focal Length | 70 mm (APS-C 35mm equiv = 112 mm) |
| Max Focal Length | 300 mm (APS-C 35mm equiv = 480 mm) |
| Max Aperture (Wide-Tele) | f4.5 - f5.6 |
| Image Stabilization | 3 stops |
| Motor | Ring USM |
| Elements/Groups | 18/12 |
| Diaphragm blades | 6 |
| Close Focus | 1.5 m : 4.9 ft |
| Maximum Magnification | 0.19x |
| Magnification w/EF12 | 0.26-0.04x |
| Magnification w/EF25 | 0.46-0.09x |
| Length/Diameter | 3.9"/3.2" : 99.1 mm / 81.3 mm |
| Weight | 25.6 oz : 727 gm |
| Filter | 58 |
| Lens Hood | ET-65B |
| LensPlay Rating | 7 - Above Average |
| User Rating # of ratings = 107 |
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| Price (click for latest pricing) | $1160 |
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COMMENTS: One of Canon's unique DO (diffractive optics) lenses (the other is the EF 400/4 DO IS USM). The use of diffractive optics makes the lens smaller and lighter than a lens using all conventional optics, but also adds to the price. Diffractive optics can also result in some optical artifcats, such as a "haze" around very bight objects when the lens is used wide open. Otherwise it's a very sharp lens capable of excellent images and it's significantly smaller (when zoomed to 70mm) than it's major rival the EF 70-300/4-5.6IS USM. The advantage of the EF 70-300/4-5.6IS USM is that it's less than half the price of the DO lens, while giving similar optical performance. However the DO lens is smaller and also has a ring USM with full time manual focus, which the non-DO lens lacks.
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