Sigma APO 2x teleconverter for Nikon Autofocus SLRs Mamiya or use some of the

or use some of the more detailed functions for extra control

Viewfinder warning lamp in low light

If light is too low then the shutter will not fire

and full manual mode with a viewfinder needle that tells you the light level so that you can set exposure correctly as desired

multiple metering modes

Sigma APO 2x teleconverter for Nikon Autofocus SLRs Mamiya or use some of theThis converter goes in between your Nikon camera and lens, and doubles the focal length (magnification) of the lens. Has special Apochromatic glass to give the best image quality, and multi coating to reduce flare. In as new condition, and with original box and front rear caps