You can save up too $125 on IRIX 11mm Blackstone and Firefly lenses.
Irix Blackstone 15mm f/2.4 at a glance:
- Canon EF-Mount/Full-Frame Format
- Aperture Range: f/2.4 to f/22
- Two Aspherical Elements
- Two ED and Three HR Elements
- Neutrino Coating
- Manual Focus Design with Focus Lock
- UV Fluorescent Engraved Markings
- Depth of Field and Focus Distance Scales
- Weather-Sealed Magnesium Alloy Housing
- Rounded Nine-Blade Diaphragm
While working on his final review, Dustin Abbott posted a set of sample photos shot with the Irix Blackstone 15mm f/2.4 lens, and a video (below) where he tells his first look impression of the Irix lens. The Irix Blackstone 15mm f/2.4 is a high quality manual focus lens that sells at $675.