Pentax has just officially announced the new Pentax HD Pentax-FA 31mm f/1.8 Limited lens. It is an updated version of the ‘smc’ version which was released in 2001. It has an ‘HD’ coating to reduce flare and ghosting, and fully rounded aperture blades. The lens has a minimum focus distance of 30cm (11.8″) and a max magnification of 0.16x. The lens is all-aluminum (but not weather-sealed) and includes an aperture ring. This new lens costs $1,049.95, first available for pre-order at B&H/ Adorama.
Below are the detailed specifications of Pentax HD Pentax-FA 31mm F1.8 Limited lens:
| Principal specifications | ||
|---|---|---|
| Lens type | Prime lens | |
| Max Format size | 35mm FF | |
| Focal length | 31 mm | |
| Image stabilization | No | |
| Lens mount | Pentax KAF | |
| Aperture | ||
| Maximum aperture | F1.8 | |
| Minimum aperture | F22 | |
| Aperture ring | Yes | |
| Number of diaphragm blades | 9 | |
| Optics | ||
| Elements | 9 | |
| Groups | 7 | |
| Special elements / coatings | HD + Super Protect coatings | |
| Focus | ||
| Minimum focus | 0.30 m (11.81″) | |
| Maximum magnification | 0.16× | |
| Autofocus | Yes | |
| Motor type | Screw drive from camera | |
| Full time manual | Unknown | |
| Focus method | Internal | |
| Distance scale | Yes | |
| DoF scale | Yes | |
| Physical | ||
| Weight | 341 g (0.75 lb) | |
| Diameter | 65 mm (2.56″) | |
| Length | 69 mm (2.72″) | |
| Materials | Aluminum | |
| Sealing | No | |
| Colour | Black, silver | |
| Filter thread | 58 mm | |
| Hood supplied | Yes | |
| SUPPORT LENS-RUMORS, BUY FROM ONE OF OUR AFFILIATE RETAILERS, THANKS ! | ||
|---|---|---|
| Pentax HD Pentax-FA 31mm F1.8 Limited | check price | B&H/ Adorama |
| Pentax HD Pentax-FA 43mm F1.9 Limited | check price | B&H/ Adorama |
| Pentax HD Pentax-FA 77mm F1.8 Limited | check price | Amazon/ B&H/ Adorama |
Read More Pentax Lens Rumors
See also 2021 Pentax Lens Deals