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Blending a versatile telephoto focal length with a modest form factor, the EF 300mm f4L IS USM is a long-reaching prime and member of Canon elite L-series of optics. Two ultra-low dispersion elements are used To significantly reduce color fringing and chromatic aberrations in order To achieve a high degree of clarity, and a Super Spectra coating has also been applied To maintain contrast and color fidelity when working in difficult lighting conditions. Complementing the imaging attributes, this 300mm f4 also features an Image Stabilizer To minimize the appearance of camera shake by two stops for sharper handheld shooting. The ring-type USM is employed, too, To deliver quick and quiet autofocus performance along with full-time manual focus control. Additionally, a removable rotating tripod collar is included for stable use of the lens atop a tripod or monopod.
Telephoto prime 300mm f4 lens is compatible with full-frame Canon EF-mount DSLRs as well as APS-C models where it will provide a 480mm equivalent focal length.
Two ultra-low dispersion (UD) elements greatly reduce chromatic aberrations and color fringing for improved clarity and color accuracy.
Super Spectra coating has been applied To individual elements To minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.
An Optical Image Stabilizer helps To minimize the appearance of camera shake by up To two shutter speed stops To better enable working in low-light conditions and with slower shutter speeds. In addition To the single-shot standard IS mode, a second mode is also available that it optimized for panning.
A ring-type Ultrasonic Motor (USM), along with a rear focusing system, is employed To deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.
Rounded eight-blade diaphragm contribute To a pleasing out of focus quality that benefits the use of shallow depth of field and Selective focus techniques.
Built-in lens hood prevents stray light from causing ghosting or flare and also protects the front element from accidental impacts or scratching.
As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.
Removable rotating tripod collar is included and benefits working with the lens atop a tripod or monopod.
Compatible with optional EF 1.4X and EF 2X teleconverters.
| Focal Length | 300mm |
| Maximum Aperture | f4 |
| Minimum Aperture | f32 |
| Lens Mount | Canon EF |
| format Compatibility | Full-Frame |
| Angle of View | 8‚° 15' |
| Minimum Focus Distance | 4.92' / 1.5 m |
| Maximum Magnification | 0.24x |
| Optical Design | 15 Elements in 11 Groups |
| Diaphragm Blades | 8, Rounded |
| Focus Type | Autofocus |
| Image Stabilization | Yes |
| Tripod Collar | Removable and Rotating |
| Filter Size | 77 mm (Front) |
| Dimensions (ƒ¸ x L) | 3.54 x 8.7" / 90 x 221 mm |
| Weight | 2.62 lb / 1190 g |