The Kenko Teleplus Pro 300 DGX converters are made with precision quality multi-coated optical glass supplied by Hoya Corporation, the world's largest manufacturer of optical glass. These glass elements were designed to match the optical quality of the prime lens (even at the edges) and telephoto zoom lenses. The optical design of the elements and light path is wide enough not to cause vignetting.
The Pro 300 family is designed specifically to be used with prime telephoto lenses of 100mm or above, such as 300mm f/2.8 lenses, and works best with telephoto lenses of 200mm to 500mm. The Pro 300 can be used with telephoto zoom lenses as well as prime lenses. However, Kenko does not recommend them for zoom lenses that have a range starting under 50mm.
The Pro 300 AF Teleplus converters have genuine Gate Array IC (Integrated Circuitry). It means that the converter’s own unique circuitry maintains signal integrity between the camera body and lens. These converters are designed to electronically operate the same way as an original manufacturer’s converter.
Full AF operation with Pro 300 1.4x DGX is possible when using camera lenses with maximum aperture of F4 or brighter. Please be aware that AF will work properly only if there is enough light and contrast on the subject to activate the camera’s AF sensors. (Manual focusing is required when using lenses with smaller maximum f-stop value than those given above.)
The DGX Teleplus converters have updated circuitry to record exif data more accurately. In the exif exposure data (meta-data recorded with a digital picture) DGX converters record the equivalent aperture and focal length of the lens setting plus tele-converter. Optically and mechanically they are the identical to the prior high-quality DG series converters.
Kenko Teleplus PRO 300 DGX 1.4x tele converter is a high precision manufactured optical device to be installed between the camera body and the master lens. Its purpose is to multiply the focal length of the lens according to its multiplication factor, changing your lens into a tele lens, with minimum loss of resolution and sharpness of the image. For example, an 1.4x Tele converter can turn a 70-200mm lens into a 98-280mm lens.
The Kenko PRO 300 DGX is a premium series of tele converters specifically designed to be used with high-resolution DSLR cameras and lenses.
Kenko Teleplus PRO 300 DGX 1.4x tele converter provides:- Complete communication and signal integrity between the lens and camera body for secure autofocus, aperture and data calculation functions.- Ability to convert and record EXIF data within the image. Teleplus tele converter can in fact record the equivalent aperture and focal length of the lens according to the multiplication factor of the converter.- High quality optical elements, as well as other parts, due to its precise manufacturing in Japan.- Compatibility with a wider range of Nikon and Canon lenses, marking it as the most versatile accessory among those usually chosen by photographers.
Here some images showcasing the effect of using a tele converter.
Kenko Teleplus tele converters can dramatically change your photos by making the object appear larger in the image and yet maintaining its high resolution and quality. This result can be achieved by simply using this lightweight and compact tele converter even if you do not have or cannot afford a good and powerful super tele lens.
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