Wǒ xīn mǎi le yī tái wēidān, bǐ dānfǎn qīng duō le.
I just bought a mirrorless camera - much lighter than a DSLR.
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usage
微单 is a Sony-coined Chinese term for mirrorless (无反) cameras, short for 微型单电. Contrast with 单反 (DSLR) - 微 signals the smaller size with no mirror box. Also seen as 无反.