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Optio A20 Specification
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Type |
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Compact-type digital still camera with built-in zoom lens, autofocus, auto exposure and auto flash and Anti-shake functions |
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Effective Pixels |
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10.0 megapixels |
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Sensor |
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Total pixels |
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10.37 megapixels
1/1.8 inch interline transfer CCD with a primary color filter |
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Recorded Pixels |
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Still |
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10M (3648 x 2736 pixels), 7M (3072 x 2304 pixels), 5M (2592 x 1944 pixels), 3M (2048 x 1536 pixels), 2M (1600 x 1200 pixels), 1024 (1024 x 768 pixels), 640 (640 x 480 pixels) |
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Movie |
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640 ( 640 x 480 pixels ), 320 ( 320 x 240 pixels )
During Blur Reduction mode, the recorded size is fixed to 5M ( 2592 x 1944 pxcels )
During Frame composite mode, the recorded size is fixed to 3M ( 2048 x 1536 ) |
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Sensitivity |
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Auto, Manual ( 64/100/200/400/800:Standard Output Sensitivity )
During Blur Reduction mode, Sensitivity is compliant to Standard Output Sensitivity 1600. |
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File Formats |
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Still |
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JPEG (Exif 2.2), DCF, DPOF, PRINT Image Matching III |
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Movie |
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AVI (MPEG-4 format, DivX), approx.30fps (frames per second) , with sound, Movie anti-shake
The input image signal at 25fps is recorded as 30fps |
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Sound |
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WAV (PCM format), monaural |
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Quality Levels |
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 (Best), (Better), (Good) |
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Storage Media |
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Built-in memory ( approx. 22 MB ), SD memory card, SDHC Memory Card |
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Lens |
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smc PENTAX power zoom 7.9mm-23.7mm (equivalent to 38mm-114mm in 35mm format)
F2.8-F5.4, 7 elements in 5 groups ( 2 dual-sided aspherical elements, 1 single-sided aspherical element ) |
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Digital Zoom |
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1X - approx. 4X |
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Focusing System |
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Type |
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TTL contrast detection autofocus system with AF spotbeam |
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Focusing Areas
Focusing Range |
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5-point multi AF / Spot AF / Tracking AF switchable |
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Still |
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Autofocus |
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Normal : 0.35m (1.15 ft ) to infinity
Macro : 0.12m (0.39 ft.) to 0.4m (1.31 ft.) at full wide-angle setting to 11.5mm
Supermacro : 0.06m (0.20 ft) to 0.15m(0.49 ft) at full wide-angle setting |
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Movie |
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Autofocus |
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Normal : 0.12m (0.39 ft ) to infinity at full wide-angle setting, 0.35m (1.15 ft) to infinity at full telephoto setting
Macro : 0.12m (0.39 ft.) to 0.4m (1.31 ft.) at full wide-angle setting to 11.5mm
Supermacro : 0.06m (0.20 ft) to 0.15m(0.49 ft) at full wide-angle setting |
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Manual Focus |
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available |
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Panfocus |
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available |
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Infinity-landscapes |
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available |
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Exposure Control |
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Metering System |
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TTL metering : Choice of Multi-segment metering, Center-weighted metering, Spot metering |
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Modes |
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Auto Picture, Program, Night Scene, Movie, Voice recording, Landscape, Flower, Portrait, Kids, Blur Reduction, Surf & Snow, Sport, Pet, Text, Food, Frame composite, Shutter-priority, Manual |
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Exposure Compensation |
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±2EV (1/3EV Steps) |
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Movie |
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Shooting time |
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Until the memory card becomes full ( up to 4GB ) |
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Movie Edit |
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Save as still image, Divide, Extract |
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Shutter |
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Programmed AE electronic lens shutter with CCD electronic shutter |
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Shutter speed |
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Approx. 1/2000 sec. to 4 sec. |
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Drive Modes |
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One shot, Self-timer ( 10sec., 2sec. ), Continuous, Remote control ( 3sec., 0sec. ) |
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Flash |
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Built-in auto flash. Automatic discharge under low lighting conditions in auto mode
Flash-on and Flash-off modes. Soft flash mode and "Red-eye" reduction function also available. |
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Effective Range |
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Wide : approx. 0.06m (0.2 ft.) to approx. 7.1m (23 ft.) ( Standard Output Sensitivity Auto )
Tele : approx. 0.35m (1.15 ft.) to approx. 3.5m (11 ft.) ( Standard Output Sensitivity Auto ) |
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White Balance |
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Auto, Daylight, Shade, Tungsten light, Fluorescent light, Manual setting |
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LCD Monitor |
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2.5 inch, TFT color, Low-Reflective type LCD (Approx. 232,000 pixels), field of view: approx. 100% |
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Time |
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World Time |
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71 cities ( 28 time zones ) |
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Language |
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English, French, German, Spanish, Portuguese, Italian, Swedish, Dutch, Russian, Korean, Chinese ( Traditional/Simplified ), Thai,Japanese |
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PictBridge |
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Print modes |
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Single image print, All images print, DPOF auto print |
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Print settings |
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Paper size, Paper type, Printing quality, Border status |
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Interfaces |
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AV output terminal, USB 2.0(HI-SPEED) terminal, DC input terminal |
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Video Output |
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Compatible with NTSC and PAL formats |
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Power Sources |
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Rechargeable D-LI8 lithium-ion battery. Optional AC adapter also available. |
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Power Life |
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Still * : Approx. 150 shots to be taken.
Playback mode ** : Approx. 100 min. |
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Dimensions |
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88.5 (W) x 54.5 (H) x 23 (D)mm ( 3.5 x 2.1 x 0.9 inches ) ( excluding protrusions ) |
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Weight |
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145g ( 5.1 oz. ) loaded and ready
125g ( 4.4 oz. ) without battery and SD memory card |
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- *
- Recording capacity shows approximate number of shots recorded during CIPA-compliant testing. Actual performance may vary according to operating conditions. ( with LCD monitor on and flash used for 50% of the shots )
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- According to the result of in-house testing. ( with LCD monitor on )
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| Storage capacity ( Still ) |
| Recorded Pixels |
10M
(3648 x 2736) |
7M
(3072 x 2304) |
5M
(2592 x 1944) |
3M
(2048 x 1536) |
2M
(1600 x 1200) |
1024
(1024 x 768) |
640
(640 x 480) |
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| Built-in memory |
6 |
9 |
13 |
9 |
13 |
19 |
13 |
19 |
27 |
20 |
29 |
41 |
29 |
42 |
59 |
53 |
77 |
108 |
99 |
143 |
199 |
| 16MB |
3 |
5 |
7 |
5 |
7 |
11 |
7 |
11 |
16 |
12 |
18 |
25 |
17 |
25 |
35 |
32 |
47 |
66 |
60 |
87 |
122 |
| 32MB |
8 |
12 |
17 |
12 |
17 |
25 |
17 |
25 |
35 |
26 |
39 |
54 |
37 |
55 |
76 |
69 |
101 |
140 |
128 |
186 |
258 |
| 64MB |
18 |
26 |
37 |
25 |
37 |
52 |
36 |
53 |
74 |
56 |
81 |
113 |
78 |
114 |
158 |
144 |
208 |
289 |
265 |
383 |
531 |
| 128MB |
37 |
54 |
76 |
53 |
77 |
107 |
75 |
109 |
151 |
114 |
165 |
229 |
160 |
232 |
322 |
292 |
423 |
586 |
537 |
777 |
1076 |
| 256MB |
74 |
107 |
149 |
104 |
151 |
210 |
147 |
213 |
296 |
223 |
323 |
448 |
313 |
453 |
628 |
571 |
826 |
1144 |
1048 |
1515 |
2098 |
| 512MB |
147 |
213 |
296 |
208 |
302 |
418 |
293 |
424 |
588 |
444 |
643 |
890 |
623 |
900 |
1247 |
1134 |
1638 |
2269 |
2079 |
3004 |
4160 |
| 1GB |
296 |
428 |
594 |
418 |
605 |
838 |
588 |
850 |
1178 |
891 |
1287 |
1783 |
1247 |
1802 |
2496 |
2269 |
3278 |
4540 |
4161 |
6012 |
8324 |
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| Storage capacity ( Movie / Sound ) |
| Recorded Pixels |
Movie
(640x480) |
Movie
(320x240) |
Sound |
| Frames per second |
30fps |
30fps |
30fps |
30fps |
30fps |
30fps |
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| Built-in memory |
1min.04sec. |
1min.21sec. |
1min.37sec. |
4min.10sec. |
5min.11sec. |
5min.59sec. |
24min.38sec. |
| 16MB |
39sec. |
49sec. |
59sec. |
2min.32sec. |
3min.09sec. |
3min.38sec. |
15min.07sec. |
| 32MB |
1min.24sec. |
1min.46sec. |
2min.07sec. |
5min.27sec. |
6min.46sec. |
7min.48sec. |
32min.00sec. |
| 64MB |
2min.55sec. |
3min.39sec. |
4min.23sec. |
11min.17sec. |
14min.01sec. |
16min.09sec. |
1h.05min.47sec. |
| 128MB |
5min.55sec. |
7min.25sec. |
8min.55sec. |
22min.56sec. |
28min.30sec. |
32min.51sec. |
2h.13min.21sec. |
| 256MB |
11min.35sec. |
14min.30sec. |
17min.25sec. |
44min.47sec. |
55min.39sec. |
64min.10sec. |
4h.19min.59sec. |
| 512MB |
22min.59sec. |
28min.47sec. |
34min.34sec. |
88min.53sec. |
110min.26sec. |
127min.19sec. |
8h.35min.30sec. |
| 1GB |
46min.00sec. |
57min.38sec. |
69min.11sec. |
177min.56sec. |
221min.03sec. |
254min.52sec. |
17h.11min.28sec. |
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System requirements
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| ACDSee for PENTAX |
| PC |
| OS |
Windows 98 SE, Me, NT, 2000, and XP |
| CPU |
Pentium or later (Pentium III 500MHz or later) |
| Memory capacity |
Over 64MB (Over 128MB) |
| Hard disk capacity |
Over 40MB (Over 50MB) |
| Others |
CD-ROM drive, Internet Explorer 5.0 or later, QuickTime6.0 or later, DirectX9.0 or later, Windows Media Player7.1 or later |
| Language |
English, French, German, Spanish, Italian, Russian, Korean, Chinese (Traditional / Simplified), Japanese |
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| Macintosh |
| OS |
9.2 (with the latest CarbonLib) or later |
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PowerPC 266MHz or later |
| Memory capacity |
Over 8MB |
| Hard disk capacity |
Over 6MB |
| Others |
CD-ROM drive, QuickTime6.0 or later |
| Language |
English, French, German, Spanish, Italian, Japanese |
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The minimum system requirements fo running ACD Showtime! for PENTAX are shown in parentheses.
ACD Showtime! for PENTAX is compatible with Windows only. |
| USB (Driver installment is required for Windows 98/98SE) |
| PC |
| OS |
Windows 98, 98SE, Me, 2000, or XP |
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| Macintosh |
| OS |
9.2, X (Ver.10.1 or later) |
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