Pentax Optio S4 Point & Shoot Camera
The Pentax Optio S4 is a 4MP 1/2.5 inch compact camera — with null video. Check GearFocus for current availability, with buyer protection on every purchase.

Pentax Optio S4 Point & Shoot Camera
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Camera Overview — Pentax Optio S4
Key Features — Pentax Optio S4
4MP 1/2.5-Inch Sensor: Captures images at up to 2304x1728 resolution, suitable for everyday photography and standard prints.
Ultra-Slim Metal Body: Measures just 83x52x20mm and weighs 98g, making it genuinely pocketable for everyday carry.
7-Point Contrast Detection AF: Covers a reasonable spread of the frame for a compact camera, helping with accurate focus on everyday subjects.
Optical Tunnel Viewfinder: Provides an alternative to the LCD for framing shots, useful in bright outdoor conditions.
1.6-Inch TFT LCD Display: Serves as the primary screen for composing and reviewing images on this compact body.
SD & Internal Storage: Accepts SD cards alongside built-in internal memory, offering flexible storage options without always needing a card.
Camera Specifications — Pentax Optio S4
| Spec | Detail |
|---|---|
| Use Cases | Travel |
| Type | Point and Shoot |
| Sensor | 1/2.5 inch |
| Resolution | 4MP |
| ISO Range | 50 – 200 |
| AF System | Contrast Detection |
| AF Points | 7 points |
| Max Photo Resolution | 2304x1728 |
| Burst Rate | 2 fps |
| Max Video Resolution | null |
| Max Frame Rate | Other |
| Video Color Profiles | Standard |
Description — Pentax Optio S4
The Pentax Optio S4 is a compact point-and-shoot camera built for everyday portability. Its metal body measures just 83x52x20mm and weighs 98g, making it one of the more pocketable options in its class. The 4MP sensor in a 1/2.5-inch format captures images at up to 2304x1728 pixels across a variety of color profiles including Normal, Fine, Superfine, Black & White, Sepia, and several creative color tones.
Shooting is aided by a 7-point contrast detection autofocus system, a 1.6-inch TFT LCD with 0.084 million dots, and an optical tunnel viewfinder. The ISO range spans 50 to 200, and Digital/Electronic IS helps manage camera shake. Storage options include SD cards and internal storage, with USB connectivity for transferring files.
The built-in flash covers 5 modes, and burst mode supports up to 2 frames per second for action sequences. The D-LI8 lithium-ion battery is rated for approximately 150 shots per charge.
Pros — Pentax Optio S4
- ✓Extremely compact metal body at just 83x52x20mm and 98g, making it genuinely pocketable
- ✓7-point contrast detection autofocus system offers reasonable coverage for a point-and-shoot
- ✓Built-in flash with 5 modes provides flexibility across a variety of lighting situations
Cons — Pentax Optio S4
- ✗ISO range tops out at 200, limiting performance in lower light conditions
- ✗No weather sealing, so the camera is vulnerable to moisture and dust
- ✗Digital/Electronic IS only — no optical or in-body image stabilization
Videos — Pentax Optio S4
Pentax are the tiny camera underdogs! — Micro Four Nerds





