Nikon ProStaff 5 16-48x60 Straight Spotting Scopes 3421 lens support and 557B

3421 lens support and 557B monopod

ZSIP Pro image processing algorithm is an advanced technology found only in DTI 6 models

giving you the option to make the tripod heavier and thus more stable

The main differences are that the GHF2W is compatible with the Arca-Swiss plate system and the addition of a fluid cartridge for smoother panning in to go with the tilt cartridge

Like the description implies

Nikon ProStaff 5 16-48x60 Straight Spotting Scopes 3421 lens support and 557BThe Nikon ProStaff 5 16 48x60 straight spotting scopes offer advanced optics and ergonomics to go with traditional Nikon quality. This is the 60 mm objective size scope with a 16 48x zoom eyepiece, providing a perfect balance of optical performance with portability. Multicoated optics provide high contrast images of maximum brightness and neutral color bias. Weighing just over 30 ounces with the eyepiece included, the compact ProStaff 5 Fieldscope has