3911| 10
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[求购] 求:奥林巴斯工业4×5后组,100/2.8大画幅工业镜头, topcor 65/7 |
点评
像场能覆盖4X5大画幅吗
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点评
用毛玻璃或半透明硫酸纸放镜头后面,无限远清晰成像的圆直径
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