Pentax DA* 50-135mm lens

Pentax smc DA* 50-135mm F2.8 ED (IF) SDM
Technical data
Maker	Pentax
Lens mount(s)	Pentax K
Type	Zoom
Focus drive	Ultrasonic
Focal length	50-135mm
Aperture (max/min)	f/2.8
Close focus distance	1.00 metre (3.28 ft)
Max. magnification	0.17
Diaphragm blades	9
Construction	18 elements / 14 groups
Features
Manual focus override	Yes
Weather-sealing	Yes
Lens-based stabilization	No
Aperture ring	No
Physical
Diameter	77 millimetres (3.0 in)
Weight	685 grams (1.510 lb)
Filter diameter	67mm
History
Introduction	2007

The Pentax smc DA* 50-135mm F2.8 ED (IF) SDM is an interchangeable camera lens announced by Pentax on February 21, 2007.

References

http://www.dpreview.com/products/pentax/lenses/pentax_smc_da_50-135_2p8_if/specifications

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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