I ran a search for "infrared" at first your thread didn't show up
Wonderful thread, I'll definitely give it a read. Thank you so much!
That aside, the site I surf is definitely legit; I've made tremendous amount of deal with them.
Below is the product page.
A direct quote from the description.
"The best, highest quality of infrared filter from Kenko / Hoya (under THK Group), the Kenko Hoya Pro 1 Digital R72 Infrared Filter!
This is the PRO 1 D range of filter from Kenko / Hoya, only available in Japan! This is not the normal R72 Hoya infrared filter sold in the market.
Infrared filter helps cut down all other lights except infrared light, which is not visible to human eyes. Kenko Hoya R72 filter permits light of around 700 wavelenght to pass through, which is the most popular infrared filter in the world!"