Irix 45mm F1.4
Specifications
Irix does not follow the fashion of giving long names, full of acronyms, to its lenses. Below are the specifications for the Irix 45mm F1.4.
As with their 150mm, Irix merged the looks and features of their previous Blackstone and Firefly options, to offer a single version of the lens, called Dragonfly. The lens is weather sealed, offers the bump on the focus ring previously found on Firefly lenses, as well as a metal housing.
| Lens Name |
Irix 45mm F1.4 |
| Optical Formula | 11 elements in 9 groups |
| Image Circle | 35mm (Full frame) |
| Auto-Exposure Support | Yes |
| Construction | Metal |
| Field of View | Diagonal / Horizontal APS-C: 34.9 ° / 29.4 ° |
| Aperture Range | F1.4 - F22 |
| Aperture Blades | 9 rounded |
| Aperture Ring | No |
| Max. Magnification | 0.15x |
| Focus Type | MF |
| Minimum Focusing Distance | 40 cm |
| Internal Focus | Yes |
| Filter Thread Diameter | 77mm |
| Cap | Dedicated clip-on |
| Hood | Petal-shaped |
| Case | Neoprene hard case |
| Diameter x Length | 87 x 103 mm (3.4 x 4 inches) |
| Weight | 910 g |
| Pentax Mount Designation | KA |
| Weather Sealing | Yes |
| Price (US MSRP) | |
| Launch Date | 2020 |
