Canon EF 300/4L USM
| Maker | Canon |
| Model | EF 300/4L USM |
| Fullframe Coverage | YES |
| Field of View
(degrees) Horizontal,Vertical, Diagonal Full Frame - 36x24mm APS-C - 22.5x15mm |
Full Frame : H - 6.9 : V - 4.6 : D - 8.3 APS-C : H - 4.3 : V - 2.9 : D - 5.2 |
| Focal Length Prime | 300 mm (APS-C 35mm equiv = 480 mm) |
| Aperture Range Prime | f4 - f32 |
| Motor | Ring USM |
| Elements/Groups | 8/7 |
| Diaphragm blades | 8 |
| Close Focus | 2.5 m : 8.2 ft |
| Maximum Magnification | 0.13x |
| Magnification w/EF12 | 0.18-0.04x |
| Magnification w/EF25 | 0.24-0.09x |
| Length/Diameter | 8.4"/3.5" : 213.4 mm / 88.9 mm |
| Weight | 41.6 oz : 1181.4 gm |
| Filter | 77 |
| Status | discontinued |
| LensPlay Rating | 9 - Very Good |
| User Rating # of ratings = 65 |
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| Price | $700 (estimated price used, +/- 25%) |
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COMMENTS: The original EF 300/4L lens, without IS. It doesn't focus quite as close as the current IS version, and, of course, it lacks IS. However it does have 1/2 the number of elements of the IS lens and there is some evidence that this does slightly increase resolution and contrast over the IS version. However the close focus ability of the IS lens and the greater sharpness when handheld at slower shutter speeds are significant benefits of the IS version. My tests showed that the difference in sharpness and flare resistance were small, and under normal conditions, probably small enough that only really picky users would notice. However when shooting very difficult subjects such as a sunrise or sunset with the sun in the frame, the difference in flare resistance can be more noticable.
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