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| Poor | Average | Good | Excellent | |
|---|---|---|---|---|
 Screen size | 1.8 in Best: Sony Cyber-shot DSC-W710 Screen size: 6.7 in | |||
 ISO maximum | 400 Best: Pentax KP ISO maximum: 819200 | |||
 Effective pixels | 4 Mpx Best: Hasselblad H6D-100c Effective pixels: 100 Mpx | |||
 Max resolution | 2304 x 1728 px Best: Leica M11 Max resolution: 9528 x 6328 px | |||
| Sensor type | CCD |
|---|---|
| Sensor size | 0.23 in |
| Sensor photo detectors | 4.0 Mpx |
| Effective pixels | 4.0 Mpx |
| Image ratio w:h | 4:3 |
| Max resolution | 2304 x 1728 px |
| Other resolutions |
|
| Optical zoom | 3.0 x |
|---|---|
| Digital zoom | 4.0 x |
| Minimum aperture | 2.6 |
| Maximum aperture | 4.8 |
| Focal length equiv | 35 - 105 |
| Autofocus |
|
| Manual focus | yes |
| Normal focus range | 15.75 in |
| Macro focus range | 2.36 in |
| Minimum shutter speed | 4.0 s |
|---|---|
| Maximum shutter speed | 1.0 s |
| Shutter priority | no |
| Aperture priority | no |
| Exposure compensation plus | 2 |
| Exposure compensation minus | -2 |
| Expousure compensation steps | 1/3 |
| Built-in flash | yes |
| Flash modes |
|
| External flash | no |
| Self-timer | yes |
| Microphone type | Mono |
|---|
| Weight | 3.7 oz |
|---|---|
| Width | 3.31 in |
| Height | 0.83 in |
| Depth | 2.05 in |
| Battery technology | Lithium-Ion |
|---|
| Timelapse recording | no |
|---|---|
| Orientation sensor | no |
| ISO |
|
|---|---|
| ISO Auto | yes |
| ISO minimum | 50 |
| ISO maximum | 400 |
| White balance presets | 5 |
| Custom white balance | yes |
| Image stabilization type | No |
| Uncompressed format | No |
| Screen size | 1.8 in |
|---|---|
| Screen technology | LCD |
| Screen dots | 85000 |
| Touch screen | no |
| Live view | no |
| Viewfinder | Optical |
| Maximum resolution | 320 x 240 px |
|---|---|
| Video recording | yes |
| Motion JPEG frame rate | 30.0 fps |
| Body type | Ultracompact |
|---|---|
| Colour of product | White |
| Environmentally sealed | no |
| Internal storage | 10.0 mB |
|---|---|
| Compatible memory cards |
|
| Storage types |
|
| HDMI | no |
|---|---|
| USB version | 1.0 |
| Remote control | yes |
| PictBridge | yes |
Pre-PMA 2004: In the last of the trio of new Pentax cameras announced today we have the Optio S4i, an improved version of the Optio S4 announced last September. There are numerous improvements including a subtle finger grip on the front of the camera, the new quick reset button on the rear and most noticeably the larger 1.8" TFT LCD monitor. The Optio S4i remains one of the smallest and lightest ultra-compact's.
Features & Controls The Optio S4i features a Pentax 5.8-17.4mm 3x optical zoom with a 35mm equivalent focal length of 35 - 105mm, the maximum aperture is f2.6 - f4.8. The lens is all glass and consists of 6 elements in 5 groups with 2 dual-sided aspherical elements. When the camera is powered
Pentax Optio S4
