Pentax 21507, 21717, 21740, 21580, 21660, 21650, 21760 manual Main Specifications

	MAIN SPECIFICATIONS
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*For use with any PENTAX digital SLR camera.

*AL = Uses an aspheric lens, ED = lens made with extra-low dispersion glass, IF = inner focus-type lens, SDM = lens with a supersonic motor

Lens	DA 14mm f/2.8ED [IF]	DA 21mm f/3.2 AL Limited	DA 35mm f/2.8 Macro Limited
Focal length	14mm (equivalent to approx.	21mm (equivalent to approx.	35mm (equivalent to approx.
	21.5mm in 35mm format)	32mm in 35mm format)	53.5mm in 35mm format)
Elements in groups	12-11	8-5	9-8
Angle of view	90°	68°	44°
Aperture	f/2.8	f/3.2	f/2.8
Minimum aperture	f/22	f/22	f/22
Mount type	KAF-mount	KAF-mount	KAF-mount
Minimum focus	0.17m (0.56ft)	0.2m (0.66ft)	0.139m (0.46ft)
distance
Maximum	Approx. 0.19×	Approx. 0.17×	Approx. 1.00×
magnification
Filter size	77mm	49mm or 43mm	49mm
Lens hood	PH-RBH 77mm	MH-RBA 43mm	Built-in
Max. Diameter	83.5mm × 69mm	63mm × 25mm	63mm × 46.5mm
× Length	(3.3in × 2.7in)	(2.5in × 1.0in)	(2.5in × 1.9in)
	Approx. 420g/14.8oz	Approx. 140g/4.9oz
Weight	(with hood approx. 455g/	(with hood approx. 155g/	Approx. 215g/7.58oz
	16oz)	5.5oz)
Soft case	S100-120	Dedicated case	Soft case DA70