Hi Carly
I purchased mine from a guy called Anthony at the Peninsula Camera Centre in Frankston Victoria. It took a little while to order it in, I seem to remember a couple of weeks? Anyway here is his website and contact number
http://www.peninsulacamera.com.au
03 97814677
Fax 03 97701589
I hope that helps. by the way his charged me $29 for the t-ring adaptor for the pentax K-x
Regards Paul.