Lawrence Letham, Alex Letham: GPS Made Easy Category_Telephoto Lenses When not in use the

When not in use the NTG-3 can be stored away in the included weather resistant aluminium storage cylinder

have been kept on his studio shelves for the past 60 years

bright maximum aperture means you can shoot handheld in low-light conditions while still getting outstanding sharpness and clarity

It helps to reduce stray light which can cause flare

Lawrence Letham, Alex Letham: GPS Made Easy Category_Telephoto Lenses When not in use theGPS Made Easy tells you all you need to know about using handheld GPS receivers as a tool for accurate navigation in the outdoors. It explains how GPS works, describes the features of GPS receivers, and gives practical examples of how to use GPS receivers in a variety of outdoor situations.