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copal

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copal
copal (ˈkəʊpəl) [a. Sp. copal (F. copal, copale), ad. Mexican copalli incense (Molina, 1571), a fragrant translucent white resin which distils from a tree, thence called copalquahuitl, also by extension applied to any similar resin (Hernandez, 1651, iii. i.).] 1. a. A hard translucent odoriferous re... Oxford English Dictionary
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Copal
Copal is a tree resin, particularly the aromatic resins from the copal tree Protium copal (Burseraceae) used by the cultures of pre-Columbian Mesoamerica Copal that is partly mineralized is known as copaline. wikipedia.org
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Copal (disambiguation)
Copal is a type of resin. Nidec Copal Corporation, a Japanese photographic, electronic, optical and mechanical manufacturer See also Copal tree (disambiguation) wikipedia.org
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copalite
copalite Min. (ˈkəʊpəlaɪt) [f. copal + -ite, Dana 1868.] Dana's name for the fossil Highgate resin, found in the blue clay of Highgate Hill; also called fossil copal, and copaline.1868 Dana Min. 739 Copalite, Fossil Copal, Highgate Resin. Oxford English Dictionary
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Copal tree
Copal tree may refer to several tree species: Trees yielding copal resin Protium copal, a tree endemic to Mexico and Central America Hymenaea courbaril , also called Brazilian copal tree, a tree common in the Caribbean, Central America, and South America Hymenaea verrucosa, also called Zanzibar copal tree wikipedia.org
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Highgate
Highgate (ˈhaɪgɪt) The name of a hill in London, used attrib. in Highgate resin, a mineral resin similar to copal found in Highgate Hill. Also called copalin(e), copalite, fossil copal.1813 T. Thomson in Ann. Philos. II. 9 The colour of Highgate resin is of a dirty yellowish light brown. 1815 A. Aik... Oxford English Dictionary
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Gum copal
Gum copal is a resin produced by the sap of forest tree in the genus Daniellia. Uses Gum copal has had a wide variety of uses in the past and present. wikipedia.org
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Nidec Copal Corporation
It has been a subsidiary of Nidec Corporation since 1998, and was formerly known as the Copal Corporation. For Minolta XE and the Leica R3 the Copal-Leitz Shutter CLS was developed in 1972. wikipedia.org
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Protium copal
Protium copal, commonly known as the copal tree, is a species of tree endemic to Mexico and Central America. References copal Trees of Belize Trees of Guatemala Trees of Mexico Cloud forest flora of Mexico wikipedia.org
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كوبال
الكوبال راتنج شجرة وخاصة الراتنجات العطرية من شجرة الكوبال Protium copal (في الفصيلة البخورية) التي تستخدمها ثقافات أمريكا الوسطى قبل العصر الكُلُمبي بخورًا wikipedia.org
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Copal-8-ol diphosphate hydratase
Copal-8-ol diphosphate hydratase (, CcCLS) is an enzyme with systematic name geranylgeranyl-diphosphate hydro-lyase ((13E)-8α-hydroxylabda-13-en-15-yl wikipedia.org
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Bursera glabrifolia
Bursera glabrifolia is one of two species commonly referred to as copal. Copal is the wood most commonly used by the woodcarvers in Oaxaca, Mexico. female copal. wikipedia.org
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有哪些比较值得入的大画幅镜头（4X5），预算万元以下？
大画幅镜间快门（既然讲的是copal/seiko这种）慢速不准基本上都是由于油泥 累积导致慢门机工作不正常，故慢速偏慢甚至无法正常工作。这种情况只要正确清洗保养和调整（即常说的CLA），绝大部分都能恢复正常。 80年代生产的copal/seiko，原盒未拆（螺丝胶在或者润滑脂是出厂状态），没用过按理说寿命应该还挺长，一样慢速不准。 至于说速度偏快…如果就普通玩玩大画幅不搞什么百年老镜收藏，那接触的快门里面，基本上只有Ilex这种速度会偏快。 zhihu
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Bursera bipinnata
Bursera bipinnata is one of two species commonly referred to as copal. Copal is the wood most commonly used by the woodcarvers in Oaxaca, Mexico. female copal. wikipedia.org
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拍摄大画幅，如何选购测光表和闪光/布光系统？
4.常见的镜头都是copal的， 用现代闪光灯完全没问题（我常用的是profotto)。 seiko的快门好像和copal的接口一样，不是很清楚。 5.焦平面测光的好处主要是在拍静物上，尤其是微距。 因为大画幅存在皮腔明显伸长的问题，在拍摄微距时候需要一定的补偿。 用测光表测量的时候就会有偏差。 zhihu
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