Nikon Tc-20e Iii 2x Teleconverter, Black [jaa913da]

The worlds first teleconverter to utilize an aspherical lens elementA new optical design that offers superior contrast and resolutionAn FX-format compatible teleconverter that extends the focal length of the primary lens by 2Utilization of an aspherical lens element enabled a more compact and lightweight teleconverterteleconverter that extends the focal length of the primary lens by 2Using this teleconverter with a lens decreases the effective aperture by two stops

The Nikon TC 20E III 2x Teleconverter is an exceptional teleconverter optimized for use with FX and DX digital SLR cameras. It doubles the focal length of compatible Nikkor lenses. The TC 20E III is constructed of 7 elements in 5 groups and with Nikon’s integrated coating (IC) you will see improved color and reduced flare. It has one aspherical lens element which virtually eliminates lens aberrations. The 2x extender (also known as a teleconverter) will double the focal length of your existing lens, and will cut back the amount of light by 2 f stops. For example, using this teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6. Teleconverters are best used with longer telephoto lenses and are not recommended for lenses wider than 50 mmProduct Features :Enhanced telephoto versatilities flare and ghosting affordable and portable gateway to extend telephoto reach2x Optical conversion factorNikon integrated coating (IC) enhances light transmission efficiency, improves color consistency and reduces flareEngineered to meet the needs of professional photographersMagnification: 2xElements: 7Groups: 5Advanced optical design