Eventhough it is in Japanese, you still can see the price. Seems like much cheaper than Singapore.
http://www.kakaku.com/sku/pricemenu/lens.htm
If you really need to read in English, here is the translator:
http://babelfish.altavista.com/babelfish/tr
http://www.kakaku.com/sku/pricemenu/lens.htm
If you really need to read in English, here is the translator:
http://babelfish.altavista.com/babelfish/tr