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Canon FD 55mm ƒ1.2 AL element diagram. The FD 55mm ƒ/1.2 AL uses a variation of the double-Gauss lens design, in which the positive meniscus element of the front Gauss pair is aspherical. In total, the lens has 8 elements in six groups: a front element, two Gauss pairs, and three additional rear elements.
The EF 17–40mm f / 4L USM lens is a wide-angle lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras. Other than the front element, it is sealed against dust and water, and features a diaphragm which remains nearly circular from f / 4 to f / 8. It is one of the few Canon photo lenses that are parfocal. [1]
Epson's EcoTank printers offer a refillable ink tank system, which can potentially lower the cost per page compared to traditional ink cartridges, with a higher cost-of-entry. [12] This operates similar to continuous ink system printers, including notifying the user's PC to ensure the tanks do not run dry, which can damage the print head.
The Six principles of Chinese painting were established by Xie He in "Six points to consider when judging a painting" (繪畫六法, Pinyin:Huìhuà Liùfǎ) from the preface to his book The Record of the Classification of Old Painters (古畫品錄; Pinyin: Gǔhuà Pǐnlù) written circa 550 and refers to "old" and "ancient" practices.
A cross-section diagram of the ship with the silhouettes of a rubber ducky, sports car, DC-3 airplane, Nomad from ST:TOS, a rat, and a hamster wheel visible. A statement that the stellar navigation department of the Enterprise -D is staffed by an assortment of cetaceans (later backed up by published blueprints of the Enterprise drawn by Sternbach).
Interstate 78 (I-78) is an east–west Interstate Highway in the Northeastern United States that runs 144 miles (232 km) from I-81 northeast of Harrisburg, Pennsylvania, through Allentown to western and North Jersey, terminating at the Holland Tunnel entrance to Lower Manhattan in New York City.
Spiking a gun was a method of temporarily disabling a cannon by hammering a barbed steel spike into the touch hole; this could be removed only with great difficulty. If a special spike was unavailable, spiking could be done by driving a bayonet into the touch-hole and breaking it off, to leave the blade's tip embedded. [2]