Pentax DA 40mm lens

smc Pentax-DA 40mm f/2.8 Limited
Technical data

Maker	Pentax
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 in (0.4 m)
Max. magnification	0.13x
Diaphragm blades	9
Construction	5 elements / 4 groups
Features
Manual focus override	Yes
Unique features	Pancake lens
Application	Normal lens
Physical
Max. length	0.6 in (15 mm)
Diameter	2.5 in (63 mm)
Weight	3.2 oz (90g)
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

The smc Pentax-DA 40mm f/2.8 Limited is a pancake lens for the Pentax K-mount. At only 0.6 in (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 as HD Pentax-DA 40mm f/2.8 Limited.^[1]

smc Pentax-DA 40mm f/2.8 XS

The smc Pentax-DA 40mm f/2.8 XS is an even thinner version of the DA 40mm lens, at 0.36 inches thick. It features an aesthetic design by Marc Newson^[2] to match the Pentax K-01.

Pentax K-30 with a smc Pentax-DA 40mm f2.8 XS lens
smc Pentax-DA 40mm f2.8 XS lens attached on a Pentax K-30 - Side view

References

↑ "HD vs. SMC Pentax Limited Primes Review". 3 December 2013. Retrieved 7 October 2015.
↑ "PENTAX Imaging: PENTAX - smc PENTAX-DA 40mm F2.8 XS Lens". Retrieved 2 February 2012.

External links

Wikimedia Commons has media related to SMC Pentax-DA 40mm F2.8 Limited, SMC Pentax-DA 40mm F2.8 XS.

Pentax K-mount lenses

DA*

Prime	DA* 55mm DA* 200mm DA* 300mm

Zoom	DA* 16-50mm DA* 50-135mm DA* 60-250mm

Prime	DA 14mm DA 35mm DA 40mm XS DA 50mm DA 560mm

Zoom	DA 10-17mm Fish-eye DA 12-24mm DA 16-45mm DA 16-85mm DA 17-70mm DA 18-50mm RE DA 18-55mm DA 18-135mm DA 18-250mm DA 18-270mm DA 50-200mm DA 55-300mm

DA Limited

Prime	DA 15mm Limited DA 21mm Limited DA 35mm Macro Limited DA 40mm Limited DA 70mm Limited

Zoom	DA 20-40mm Limited

D FA and D FA*

Prime	D FA 50mm Macro D FA 100mm Macro D FA 100mm Macro WR

Zoom	D FA 24-70mm D FA* 70-200mm D FA 150-450mm

FA Limited

FA*

Prime	FA* 24mm FA* 85mm FA* 200mm FA* 200mm Macro FA* 300mm FA* 400mm FA* 600mm

Zoom	FA* 28-70mm FA* 80-200mm FA* 250-600mm

FA and FA J

Prime	FA 20mm FA 28mm FA 28mm Soft FA 35mm FA 50mm FA 50mm Macro FA 85mm Soft FA 100mm Macro FA 135mm

Zoom	FA J 18-35mm FA 20-35mm FA 24-90mm FA 28-70mm FA 28-80mm FA J 28-80mm FA 28-90mm FA 28-105mm FA 28-200mm FA 35-80mm FA 70-200mm FA J 75-300mm FA 80-200mm FA 80-320mm FA 100-300mm

F and F*

Prime	F 28mm F 50mm F 85mm F 100mm Macro F 135mm F* 300mm F* 600mm

Zoom	F 17-28mm Fish-eye F 24-50mm F 28-80mm F 35-70mm F 35-80mm F 35-105mm F 35-135mm F 70-210mm F 80-200mm F 100-300mm F* 250-600mm

A and A*

Prime	A 15mm A 16mm Fish-eye A 20mm A 24mm A 28mm A 35mm A 50mm A 50mm Macro A* 85mm A 100mm A 100mm Macro A 135mm A* 135mm A 200mm A* 200mm A* 200mm Macro A* 300mm A 400mm A* 400mm A* 600mm A* 1200mm

Zoom	A 24-50mm A 28-80mm A 28-135mm A 35-70mm A 35-80mm A 35-105mm A 35-135mm A 35-210mm A 70-210mm A 80-200mm

M and M*

Prime	M 20mm M 28mm M 35mm M 40mm M 50mm M 50mm Macro M 85mm M 100mm M 100mm Macro M 120mm M 135mm M 150mm M 200mm M* 300mm M 400mm

Zoom	M 24-35mm M 24-50mm M 28-50mm M 35-70mm M 40-80mm M 75-150mm M 80-200mm

Special

DA 1.4× Rear Converter
AF 35-70mm (for ME F)

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