Scopes: Kenko have a range of 5 spotting scopes which are ideal for birdwatching. All scopes come complete with zoom eyepiece, however interchangeable eyepieces are available separately.
Please see here for full range: Kenko Spotting Scopes

Teleconverters: These accessories multiply the effective focal length of an attached lens by a factor. For example, a 200mm lens with a 1.4x teleconverter has an effective focal length of 280mm: with the 2x teleconverter, this increases to 400mm. Not all lenses will retain autofocus with a teleconverter attached and you will loose 1-2 stops of light depending on which teleconverter is being used.
Please see here for full range: Kenko Teleplus converters

Kenko Meters: New for September 2007 a range of 3 meters aimed at both the enthusiast photographer, as well as the professional photographer.
Please see here for full range:Kenko Meters