Kenko's TelePlus MC7 AF 2x Auto Focus 7-Element Teleconverter (also known as a tele-extender) doubles the focal length of your lens while retaining the prime minimum focusing distance. Depth of field is decreased by 1/2. MC7 denotes a 7-element, 4-group design featuring multi-coated lens elements. It has a fully automatic diaphragm coupling. Using a 2x teleconverter with (for example) a 300mm lens gives an effective focal length of 600mm. With this teleconverter a lens set to f/2.8 will now be f/5.6.
- For Use with Digital SLRs
- Lens Elements are Multi-Coated
- Proprietary Integrated Circuitry
- Focal Length of Lens is Doubled
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