Landscape Photography --JINTU 420-800mm Telephoto Zoom Lens

How to use JINTU Manual focus lens ---------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------- How to set your camera : 1. Setting on Manual Mode 2.Focal Range and aperture range on the lens F8.3-420mm, --F16-800mm --Adjust focus ring and Shutter speed slowly on your camera ---ISO on your camera ---use tripod and remote control with lens together make image stable On the lens, at every focal length belongs an aperture(F-Number) you can&change them 420mm---f8.3 500mm---f10 600mm---f12 700mm---f14 800mm---f16