Please read if you are a version 1 license holder.
Dear Dfx v1 customer,
At last, the time has come to officially retire Tiffen Dfx v1 which was released in August of 2007.
Effective October 30, 2011, Tiffen will no longer offer support on Dfx v1.
Please know that your current Dfx v1 license will continue to function as usual - as long as the hardware to which it is locked is operational and you are running qualified host software. However, any manual transfers, replacements or support inquiries will require an upgrade to the Dfx v3.
Check out the many advantages to upgrading to Dfx v3 http://www.tiffensoftware.com/products
Please take the time to download and get a fully functional trial of Dfx v3 : http://www.tiffensoftware.com/support/upgrades
Thank you for your continued support of the Tiffen DFX product line,
The Tiffen Company