This brand new 2X HD 1080I AF Tele converter for Canon or Nikon SLR and DSLR cameras is specifically designed for use with ultra-telephoto lenses to double the focal length of prime lenses while maintaining full auto focus and deliver maximum resolution, contrast and color balance without degrading any aspect of the master lens performance. 

Specifications:

• Magnification: 2X HD 1080I
• Optical Construction : 7 Elements
• Auto Focus: Yes
• Lens : Multi Coated Glass
• Compact lightweight precision engineered
• Depth Of Field : 1/2 Of Prime Lens
• Min. Focusing Distance : Same As Prime Lens
• Diaphragm Coupling : Fully Automatic
• Reduction In Lens Speed : Approx. 2 Stops
• Case : Hard Shell Mahagony Carrying Case Included
• Weight : 5.5 OZ