Pentax DA 40mm lens
 | |
| Maker | Pentax |
|---|---|
| Technical data | |
| Type | Prime |
| Focal length | 40mm |
| Focal length (35mm equiv.) | 60mm |
| Crop factor | 1.5 |
| Aperture (max/min) | f/2.8 / f/22 |
| Close focus distance | 15.7 inches (0.40 m) |
| Max. magnification | 0.13x |
| Diaphragm blades | 9 |
| Construction | 5 elements in 4 groups |
| Features | |
| Manual focus override |  Yes |
| Unique features | Pancake lens |
| Application | Normal lens |
| Physical | |
| Max. length | 0.6 inches (15 mm) |
| Diameter | 2.5 inches (64 mm) |
| Weight | 3.2 oz (91 g) |
| Filter diameter | 49mm (30.5mm on hood) |
| Accessories | |
| Lens hood | MH-RC 49mm |
| Case | DA 40mm Lens Soft Case |
| Angle of view | |
| Diagonal | 39° |
| History | |
| Introduction | 2004 |
| Retail info | |
| MSRP | $499.95 USD |
DA 40mm f/2.8 Limited
The smc Pentax-DA 40mm f/2.8 Limited is a pancake lens for the Pentax K-mount. At only 0.6 inches (15 mm) 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]
DA 40mm f/2.8 XS
The SMC Pentax-DA 40mm f/2.8 XS is an even thinner version of the SMC DA 40mm lens, at 9.1 millimetres (0.36 in) 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.
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DA 40mm f2.8 XS mounted on Pentax K-01
References
- ^ PentaxForums.com. "HD vs. SMC Pentax Limited Primes Review". Retrieved 7 October 2015.
- ^ PentaxForums.com. "PENTAX Imaging: PENTAX - smc PENTAX-DA 40mm F2.8 XS Lens". Archived from the original on 11 May 2012. Retrieved 2 February 2012.
- ^ PhotographyLife.com (26 February 2016). "Pentax smc DA 40mm f/2.8 XS". Retrieved 2018-02-11.
External links
- DA 40mm f2.8 Limited Official product page at Ricoh Imaging
- DA 40mm f2.8 XS Official product page at Ricoh Imaging
- PENTAX Introduces an Ultra-Thin 40mm Lens for the Digital SLRs, press release at Ricoh Imaging
- Examples of images list for 40mm XS, PENTAX K-1 Laboratory
- Pentax DA 35mm F2.4 vs 40mm XS vs 40mm Limited Review at PentaxForums.com