The day after Christmas was also the traditional day on which the aristocracy distributed presents (boxes) to servants and employees  a sort of institutionalized Christmas-bonus party. The servants returned home, opened their boxes and had a second Christmas on what became known as Boxing Day.
300 mm. For a 35 mm camera with a diagonal of 43 mm, the most commonly used normal lens is 50 mm, but focal lengths between about 40 and 58 mm are also considered normal. The 50 mm focal length was chosen by Oskar Barnack, the creator of the Leica camera.
Two focal lengths we featured were the 35mm and the 50mm primes. The two lenses that outperformed the available choices were no surprise. The Canon 35mm f/1.4L lens for the 35mm focal length and the Canon 50mm f/1.2L lens for the 50mm focal length.