This Goggles version LEICA LEITZ SUMMILUX 35mm f/1.4 Steel Rim 鋼嘴 had a problem of elements separation on its front internal doublet. Following the standard re-cementing procedure: taking out the lens group, taking apart the two elements, cleaning the elements thoroughly, then re-cementing under precise collimation. The result showed that the treatment was done perfectly without any issue.
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