Samyang 10mm F2.8 ED AS NCS CS
Specifications
The Samyang 10mm F2.8 ED AS NCS CS is the first Samyang lens to feature NCS, a nano-crystal lens element coating normally only found on top-shelf lenses. This coating is similar to the Pentax HD coating and offers lower reflectance and improved contrast compared to traditional multi-layer coatings.
Samyang 10mm Optical Diagram
The lens's complex optical formula, shown above, includes a number of special glass elements.
Some of the specifications below are specific to the Pentax version of the lens. For the field of view and weight of other variants, see this table.
| Lens Name | Samyang 10mm F2.8 ED AS NCS CS |
| Optical Formula | 14 elements in 9 groups |
| Image Circle | APS-C |
| Image Stabilization | In-body SR support Requires focal length entry at startup |
| Auto-Exposure Support | Yes (P, Tv, Av, M modes) |
| Construction | Plastic exterior with inner metal barrel Metal lens mount |
| Field of View | 109.5° (diagonal) |
| Aperture Range | F2.8 - F22 |
| Aperture Blades | 6 (rounded) |
| Aperture Ring | Yes |
| Max. Magnification | 0.05x (1:22) |
| Focus Type | Manual focus |
| Minimum Focusing Distance | 24cm (9.5in) |
| Internal Focus | Yes |
| Filter Thread Diameter | N/A |
| Cap | Plastic, pinch type |
| Hood | Built-in |
| Case | Included (cloth pouch) |
| Diameter x Length | 87 x 104.6mm (3.4 x 4.1in) |
| Weight | 580g (18.28oz.) |
| Pentax Mount Designation | KA |
| Weather Sealing | N/A |
| Price (US MSRP) | |
| Launch Date | April, 2014 |
| Other Available Mounts | Nikon F, Canon EF, Canon M |
On the next page, we'll take a look at what's in the box.
