Lawrence Letham, Alex Letham: GPS Made Easy Brand_Manfrotto Having to change lenses as

Having to change lenses as you shoot can slow you down and introduce unwanted changes in image quality

With transfer speeds of up to 160MB/s

from seemingly criminal acts to simply grotesque acts

Nikon SLR cameras (without built-in adjustable eyepiece correction) have a base diopter value of minus one

Lawrence Letham, Alex Letham: GPS Made Easy Brand_Manfrotto Having to change lenses asGPS 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.