Kenko 1.4X PRO 300 Teleconverter DGX Nikon AF Digital SLRs

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Price: $196.34 Too low to display   

Product Feature

• The PRO 300 can be used with telephoto zoom lenses as well as prime lenses.

Product Description

Kenko AF 1.4x Super High Quality Teleplus converter also has genuine Gated Array IC and is compact for light weight and easy handling. Full AF is capable with lenses having a maximum aperture of F/4.5 or brighter. (Manual focusing will be required with lenses of smaller aperture.)Placed between the camera body and lens, a teleconverter contains a set of optics that will effectively increase the focal length of a lens by a specific amount. Common magnifications are 1.4 times and 2 times, but the Kenko teleplus PRO 300 AF converter has a 3x magnification. For example, using a 2 times (2x) teleconverter will increase the focal of 300mm lens to 600mm. The Teleplus PRO 300 converters are made with high quality multi-coated optical glass supplied by Hoya Corporation, the worlds largest manufacturer of optical glass. These glass elements are 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, a 300 mm f/2.8 lens, and work 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 50 mm.

Kenko 1.4X PRO 300 Teleconverter DGX Nikon AF Digital SLRs Review

This is new DGX model of the popular Kenko 1.4x Pro series teleconverter. The main difference between DG and DGX is DG doesn't correct aperture of the lens and DGX does. For example, Tamron 70-200mm has wide open f2.8 aperture that reduces to f4.0 when used with 1.4x teleconverter. DG version would still show you f2.8 and new DGX will display correct number f4.0. Otherwise, both DG and DGX models are the same.

Your mileage may very depends on the lens and camera body you use. Most cameras have problems focusing with lens that have less then f5.6 aperture. Any 1.4x teleconverter loose 1 stop of light. If you want to extend reach of slow lens (f5.6 and less) be prepared to loose or reduce auto-focus functionality. It doesn't depend on teleconverters - so don't blame them!

I used Kenko 1.4 PRO 300 DGX on Nikon D300 with Tamron 70-200mm f2.8 lens. Kenko works exactly as it suppose to: image quality reduction is minimal, fits fine, metering exposure is unaffected with no extra compensation required. It definitely deserves high recommendations.

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