| smc Pentax-DA 40mm f/2.8 Limited | |
| Maker: | Pentax |
| Feat-Special: | Pancake lens |
| Feat-Mfo: | y |
| Application: | Normal lens |
| Type: | p |
| Flength: | 40mm |
| Flength-Eq: | 60mm |
| Fov: | 1.5 |
| Aperture: | 2.8 / 22 |
| Groups: | 4 |
| Elements: | 5 |
| Diaphragm: | 9 |
| Close-Dist: | 15.7inches |
| Max-Mag: | 0.13x |
| Max-Diameter: | 2.5inches |
| Max-Length: | 0.6inches |
| Weight: | 3.2oz |
| Filter: | 49mm (30.5mm on hood) |
| Hood: | MH-RC 49mm |
| Case: | DA 40mm Lens Soft Case |
| Av-Diag: | 39° |
| Start: | 2004 |
| Msrp: | $499.95 |
The smc Pentax-DA 40mm f/2.8 Limited is a pancake lens for the Pentax K-mount. At only 0.6inches long, it was the smallest lens made by Pentax until the 40mm XS lens was introduced. The lens has a 35mm equivalent focal length of 60mm; it is part of the Limited series of high-performance compact lenses. In August 2013 it was re-released with improved lens coatings and rounded aperture blades as HD Pentax-DA 40mm f/2.8 Limited.[1]
The SMC Pentax-DA 40mm f/2.8 XS is an even thinner version of the SMC DA 40mm lens, at 9.1mm thick, released by Pentax on February 2, 2012. It features an aesthetic design by Marc Newson[2] [3] to match the Pentax K-01. It is currently one of the thinnest autofocus pancake lenses ever made.