Pentax 21880 Operation Manual - Page 49

Main Specifications

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MAIN SPECIFICATIONS 47 * 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 15mm f/4ED AL Limited DA 21mm f/3.2 AL Limited Focal length 14mm (equivalent to approx. 15mm (equivalent to approx. 21mm (equivalent to approx. 21.5mm in 35mm format) 23mm in 35mm format) 32mm in 35mm format) Elements in groups 12-11 8-6 8-5 Angle of view 90° 86° 68° Aperture f/2.8 f/4 f/3.2 Minimum aperture f/22 f/22 f/22 Mount type KAF-mount KAF-mount KAF-mount Minimum focus distance 0.17m (0.56ft) 0.18m (0.59ft) 0.2m (0.66ft) Maximum magnification Approx. 0.19× Approx. 0.15× Approx. 0.17× Filter size 77mm 49mm 49mm or 43mm Lens hood PH-RBH 77mm Built-in MH-RBA 43mm Max. diameter 83.5mm × 69mm × length (3.3in × 2.7in) 63mm × 39.5mm (2.5in × 1.6in) 63mm × 25mm (2.5in × 1.0in) Weight Approx. 420g/14.8oz (with hood approx. 455g/ Approx. 190g/6.7oz 16.0oz) Approx. 140g/4.9oz (with hood approx. 155g/ 5.5oz) Soft case S100-120 Soft case DA70 Dedicated case

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47
47
MAIN SPECIFICATIONS
* 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 15mm f/4ED AL Limited
DA 21mm f/3.2 AL Limited
Focal length
14mm (equivalent to approx.
21.5mm in 35mm format)
15mm (equivalent to approx.
23mm in 35mm format)
21mm (equivalent to approx.
32mm in 35mm format)
Elements in groups
12-11
8-6
8-5
Angle of view
90°
86°
68°
Aperture
f/2.8
f/4
f/3.2
Minimum aperture
f/22
f/22
f/22
Mount type
K
AF
-mount
K
AF
-mount
K
AF
-mount
Minimum focus
distance
0.17m (0.56ft)
0.18m (0.59ft)
0.2m (0.66ft)
Maximum
magnification
Approx. 0.19×
Approx. 0.15×
Approx. 0.17×
Filter size
77mm
49mm
49mm or 43mm
Lens hood
PH-RBH 77mm
Built-in
MH-RBA 43mm
Max. diameter
× length
83.5mm × 69mm
(3.3in × 2.7in)
63mm × 39.5mm
(2.5in × 1.6in)
63mm × 25mm
(2.5in × 1.0in)
Weight
Approx. 420
g
/14.8oz
(with hood approx. 455
g
/
16.0oz)
Approx. 190
g
/6.7oz
Approx. 140
g
/4.9oz
(with hood approx. 155
g
/
5.5oz)
Soft case
S100-120
Soft case DA70
Dedicated case