SMC Pentax-FA
31mm F1.8 AL Limited
Pentax
Pentax Markets a High-Quality 31mm Wide-Angle Lens for 35mm-Format Autofocus SLR Cameras
(previously shown at Photoexpo 2001 in Japan)
click on image to enlarge
April 23rd, 2001
Asahi Optical Co., Ltd. is proud
to announce the marketing of the SMC Pentax-FA 31mm F1.8 AL Limited as a new addition to
its highly acclaimed "Limited" series of interchangeable lenses. Designed for
use with the Pentax line of 35mm-format autofocus SLR cameras, this new lens offers
exceptionally high image quality and a beautiful aluminum body with metallic silver
finish.
The SMC Pentax-FA 31mm F1.8 AL Limited now joins its two popular sister models - the SMC
Pentax-FA 43mm F1.9 Limited and the SMC Pentax-FA 77mm F1.8 Limited - and becomes the
first in the Limited series to offer a wide-angle perspective. Incorporating eighth
glass-molded aspherical lens elements into its 9-element, 7-group optics, this lens offers
sharp, crisp image reproduction, even at the maximum aperture of F1.8, with a very soft
rendition of out-of-focus areas. The Pentax-original floating mechanism effectively
compensates for fluctuating aberrations, especially when photographing relatively close
subjects. This new Limited-series lens offers a minimum focusing distance of just 0.3
meters (one foot) for the 0.16-times magnification. It even comes equipped with an
exclusively designed flower-shaped lens hood, which not only cuts down excessive light but
also allows for easy attachment and removal of filters.
Specifications:
| Model |
SMC Pentax-FA 31mm F1.8 AL Limited |
Lens Constructions
(group-element) |
9 elements in 7groups |
| Angle of View |
70° |
| Diaphragm |
Fully Automatic |
| Minimum Aperture |
22 |
| Photometric Method |
TTL open-aperture metering |
| Minimum Focusing Distance |
0.3m (1 ft.) |
| Maximum Magnification |
0.16 x |
| Filter Diameter |
58mm |
Maximum Diameter &
Minimum Length |
65.0mm x 68.5mm
(2.6inch x 2.7inch) |
| Weight (without hood) |
345g (12.2oz.) |
|
