https://www.bhphotovideo.com/c/product/1189220-REG/zeiss_2131_999_loxia_21mm_f_2_8_lens.html
只在eBay有一个以色列的seller降了$100,也不知是否可靠或是 cyber monday 会不会有更好的deal:http://www.ebay.com/itm/Zeiss-Loxia-21mm-f-2-8-Lens-for-Sony-E-Mount-Mfr-2131-999-/142143983613?hash=item2118710ffd:g:ExsAAOSwXeJXflUL