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Pentax Optio S55 Point & Shoot Camera

The Pentax Optio S55 is a 5MP 1/2.5 inch compact camera — with null video. Check GearFocus for current availability, with buyer protection on every purchase.

Pentax Optio S55 Point & Shoot Camera

Pentax Optio S55 Point & Shoot Camera

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Camera Overview — Pentax Optio S55

The Pentax Optio S55 is a compact point-and-shoot digital camera built around a 5MP, 1/2.5-inch sensor capable of capturing stills at a maximum resolution of 2560x1920 pixels. Its aluminum alloy front panel paired with a plastic rear panel keeps the body lightweight at just 155g, with dimensions of 89 x 59 x 28 mm — genuinely pocketable for everyday carry. The camera runs on 2x AA batteries, offering approximately 230 shots per charge, which provides a practical convenience since AA cells are widely available.

For framing shots, a 2.5-inch fixed LCD with 115,000 dots of resolution serves as the primary display. There is no optical or digital image stabilization, and autofocus is handled by a single-point contrast detection system. The ISO range runs from 50 to 400, providing some flexibility across lighting conditions.

Storage is handled via SD card or the camera's internal storage. Connectivity includes USB output, though there is no Wi-Fi or Bluetooth. A built-in flash covers auto, on, off, and red-eye reduction modes.

Video capture is supported at up to 30fps in 8-bit color. For collectors or casual shooters seeking a compact, lightweight digital camera from this era, the Optio S55 delivers a straightforward and portable shooting experience.

Key Features — Pentax Optio S55

5MP 1/2.5-Inch Sensor: Captures stills at up to 2560x1920 pixels, suitable for standard prints and everyday photo sharing.

Aluminum Alloy Front Panel: Metal front construction keeps the body durable while remaining lightweight at just 155g.

Pocketable Form Factor: At 89 x 59 x 28 mm, the camera fits easily in a shirt or jeans pocket for everyday carry.

AA Battery Power: Runs on 2x AA batteries for approximately 230 shots per charge, using a cell format available almost anywhere.

2.5-Inch Fixed LCD: 115,000-dot rear display serves as the primary framing and review screen.

ISO 50–400 Range: Low base ISO of 50 allows for clean images in bright conditions, with 400 available for lower light situations.

Camera Specifications — Pentax Optio S55

Pentax Optio S55 full specifications
SpecDetail
Use CasesTravel
TypePoint and Shoot
Sensor1/2.5 inch
Resolution5MP
ISO Range50 – 400
AF SystemContrast Detection
AF Points1 point
Max Photo Resolution2560x1920
Burst Rate1 fps
Max Video Resolutionnull
Max Frame Rate30fps
Bit Depth8-bit

Description — Pentax Optio S55

The Pentax Optio S55 is a point-and-shoot compact camera built for portability and straightforward use. At just 155g and measuring 89 x 59 x 28 mm, it fits comfortably in a pocket thanks to its aluminum alloy front panel and plastic rear construction. The camera is equipped with a 5MP, 1/2.5-inch sensor producing stills at up to 2560x1920 pixels.

Shooting is guided by a 2.5-inch fixed LCD with 115,000 dots of resolution. Autofocus relies on contrast detection with a single focus point. The ISO range of 50–400 offers basic sensitivity flexibility.

Power comes from 2x AA batteries, rated for approximately 230 shots per charge. Media options include SD card and internal storage. The built-in flash supports auto, on, off, and red-eye reduction modes.

Video is supported at up to 30fps in 8-bit color. Connectivity includes USB, but no Wi-Fi or Bluetooth is available.

Pros — Pentax Optio S55

  • ✓Lightweight 155g aluminum alloy and plastic body measures just 89 x 59 x 28 mm for easy portability
  • ✓5MP sensor delivers a maximum still resolution of 2560x1920 pixels
  • ✓Powered by 2x AA batteries with approximately 230 shots per charge — widely available battery format

Cons — Pentax Optio S55

  • ✗No image stabilization of any kind — neither in-body nor digital
  • ✗Single-point contrast detection autofocus with no subject or eye tracking
  • ✗ISO range tops out at 400, limiting performance in low-light situations

Resources & Downloads — Pentax Optio S55

Manuals & Guides

Frequently Asked Questions — Pentax Optio S55

What batteries does the Pentax Optio S55 use?+
The Optio S55 runs on 2x AA batteries, offering approximately 230 shots per charge. AA batteries are widely available, making this a convenient choice for travel.
Does the Pentax Optio S55 have image stabilization?+
No, the Optio S55 does not have any form of image stabilization. Neither in-body nor digital IS is present, so steady hands or good lighting are important for sharp shots.
What storage media does the Optio S55 support?+
The camera supports SD cards as well as internal storage, giving users a basic fallback option if no SD card is inserted.
Can the Pentax Optio S55 record video?+
Yes, the camera supports video recording at frame rates of 15fps and 30fps in 8-bit color. No maximum video resolution is specified in the product data.
What is the ISO range of the Optio S55?+
The camera offers an ISO range from 50 to 400. This provides some latitude across different lighting conditions, though the upper limit of 400 is modest.
Does the Optio S55 have wireless connectivity?+
No, the Optio S55 does not include Wi-Fi or Bluetooth. It does offer USB connectivity for wired image transfer to a computer.

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