适马这支昂贵的大光圈APS镜头建立了一个泾渭分明的买家圈子——这或许会导致其用户偏少,真是可惜。有时候,器材评测员的生活就是这样。他们很难为一支镜头兴奋不已,但还是要认真为它写出一篇力求准确的评测文章。对这种毫无期待感的繁重工作的厌倦绝不能演变成对产品的抱怨和责怪,这是我们首先要强调的。不过,当我们面对佳能这支发售有些年头的100mm微距镜头时,则充满感激,它凭借杰出的锐度 Sigma’s expensive, large-aperture APS lens creates a distinctly different circle of buyers - something that may cause its subscribers to be modest, unfortunately. Sometimes, equipment assessor’s life is like this. They are struggling to be excited about a shot, but still have to write down an accurate assessment of the article for it. Wearyness in such a hopelessly burdensome job can never evolve into complaining and blaming the product, which is something we must emphasize first. However, when we face some of Canon’s sale of some 100mm macro lens, it is grateful, with its outstanding sharpness