[gofans]

I find CPL only......
Cannot find ND >.<

[老叟]

Yes,it is true!! But in US it is , available elsewhere!!
Call Dcc or Man Shing, they might have sometimes!!
Or get it from internet shop like B&H,and Adorama accepts credit card or cheque!!

[Larry Fung]

buy a step up ring to other diameter

[gofans]

Thanks a lot

[oldpear]

CPL本身就是一塊ND2-ND4, 兩塊CPL旋在一起是ND4-ND8, 兩塊背對背的CPL疊在一起約等於ND32-ND64, 可以直接拍攝太陽黑子而不傷害相機。

物資缺乏時, 變通一下就是了, 反正ND也不是經常用得著。 ^_^