mira1234 wrote:
P 的 DA21...(恕刪)
Pentax DA21餅乾 有兩種濾鏡可以用 49mm 43m, 43mm用的話不會增加大小啦!
Physically, the lens' most unusual trait is the hood (included), which, with its elegant black-on-black markings, has a rectangular shape that resembles a mask more than a typical lens shade. The dual 43mm/49mm filter system is also nonstandard. Threads inside the lenshood accept 43mm filters, but because the bayoneting hood prevents finger access to these filters, the design is inappropriate for circular polarizers, split filters, and other lens-mount accessories that require accurate positioning. To use such filters, you remove the lens shade and thread 49mm filters, more conventionally, onto the outer barrel rim.
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