Swansea from St. Thomas, Oxymel Process Print 1858 斯温西-圣托马斯，1858年氧醇法印刷 1856 – John Dillwyn Llewelyn (1810 – 1882), a botanist and pioneer photographer from Wales introduces the Oxymel Process which allowed collodion negatives to be preserved over many days. 1856——约翰卢埃林（1810—1882），一位来自威尔士的植物学家和先驱摄影师介绍了氧醇法，这种方法可以使胶棉底片能够保存很多天。 未经授权，不得转载！ |
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