15 May Heads Up Display
If you've ever looked at a gun sight in a modern fighter aircraft you'll probably have seen some form of HUD - Heads Up Display. It is a design that allows the pilot to aim his guns or missiles without having to bend forward to look into an eyepiece or squint at crosshairs or into iron sights. Most HUD's are projected images or lights onto an internal screen in the cockpit that is linked to where the weapons are going to impact. The best ones have computer tracking and prediction for lay-off. Well, we're not generally shooting down MiG's at Camera Electronic, and you may not be doing so out at your house*, but there are a number of times when we are trying to get a long lens to see a distant subject but we have no idea how to bring the lens to bear upon it. Air shows, wildlife, birds, and sports shots come to mind. We may have a great long lens that delivers crisp shots but we find ourselves waving all around the heavens while trying to...