The actual time in the air would be 5.9 hours (probably longer, since spec sheet range numbers usually are at economy settings, but speed is quoted at 75%). Two fuel stops, however, are going to add 1.5 hours (45 minutes per stop, which is conservative) for a total of 7.3 hours.
A normal lens or normal prime is a lens with a focal length about equal to the diagonal size of the film or sensor format, or that reproduces perspective that generally looks natural to a human observer under normal viewing conditions.
They offer natural, comfortable vision to anyone challenged by presbyopia. With over 400 million pairs sold, Varilux is the progressive lens brand most prescribed by Eyecare Professionals and trusted by millions of satisfied wearers.rogressive lenses feature a continuous field of vision with no lines. Bifocal lenses provide a distinct near and far viewing area, but no intermediate area (3-20 feet away). The different viewing areas are separated by noticeable lines that can be awkward, abrupt, and frustrating to the wearer.