I regret buying the Tianya filter set. Cos I can use the gnd filter in CS4 or Lightroom 2.7 to get it done..
will wait for your call / sms. If you want, for additional $5, which rounds up $25, I throw in a ND4 square.
Reason being that I've upgraded to cokin series, hoya ND8, hoya cpl.
Hopefully still got enough money to buy Red Bull merchandise to support them at F1