The Carl Zeiss Award (CZA) was created in December 1991 (Brit. Birds 84: 589), when it was announced that: 'Carl Zeiss-Germany, sponsor of the Rarities Committee, is offering an annual prize of Carl Zeiss 10x40 B/GAT Dialyt or 7x42 B/GAT binoculars tothe photographer who supplies "the most helpful, interesting and instructive" photograph of a rarity, taken in the field in Britain... The winning photograph may be big, bright, sharp and beautiful, or be small, dull, fuzzy and admired only by the Committee, but it will have included details which helped to clinch the identification of the bird in question and it may well have added to ornithological knowledge of the species' identification, ageing or sexing criteria.' The aim of the award was to encourage the submission of potentially useful photographs for the purpose of record assessment, subsequent reference material and possible publication. The competition has continued ever since, with a short hiatus during 2006 and 2007and a special competition to celebrate the 50th anniversary of the BBRC in 2008.
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机译：卡尔·蔡司奖（CZA）创建于1991年12月（英国鸟类协会84：589），当时宣布：稀有委员会的赞助商卡尔·蔡司德国每年将提供卡尔·蔡司10x40 B /向在英国野外拍摄的提供稀有“最有用，最有趣和最具启发性”照片的摄影师使用GAT Dialyt或7x42 B / GAT双筒望远镜...获胜的照片可能大，亮，清晰，漂亮，或者小，呆板，模糊且仅受委员会赞赏，但其中将包括有助于确定所涉鸟类的细节，而且很可能增加了鸟类学知识，包括该物种的识别，年龄或性别标准。该奖项的目的是鼓励提交可能有用的照片，以用于记录评估，后续参考材料和可能的出版。此后比赛一直持续，在2006年和2007年间短暂中断，并举办了一场特别比赛来庆祝BBRC成立50周年（2008年）。
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