Irix USA via Amazon currently offers 70% off on their Irix lenses at Amazon US. You can redeemed the 70% off promotion at product pages.
Qualifying items:
- Irix 15mm f/2.4 Blackstone Lens for Canon – at Amazon.com
- Irix 15mm f/2.4 Firefly Lens for Canon – at Amazon.com
- Irix 11mm f/4.0 Blackstone Lens for Canon – at Amazon.com
- Irix 11mm f/4.0 Firefly Lens for Canon – at Amazon.com