On the right side of the camera (from the back) is a small door behind which you will find the combined USB & A/V connector and DC-IN (for optional AC adapter). While the design of this door could still be refined it is far better than that found on other digital cameras.

Take note manufacturers like Canon who still choose to place rubber connector covers on the outside of the camera body.


The lens must be one of the Optio 550's biggest assets, offering buyers five times optical zoom lens in a compact five megapixel digital camera is an attractive proposal indeed. This however also means that this little lens has a lot to live up to. It provides an equivalent focal length range of 37.5 to 187.5 mm. Maximum aperture at wide angle is F2.8, at telephoto F4.6 (not bad considering the focal length). On the downside the lens does take a rather lethargic 3.4 seconds to extend (actual power up is slightly longer).

Base / Tripod Mount

On the base of the camera is a plastic (groan) tripod mount which is located too close to the front of the camera and the battery / storage compartment door. The proximity of the tripod mount to the front of the camera means that it tips forwards when tightened on a tripod.


In the top right corner of the front of the camera is the flash unit, it has a quoted range of 5.2 m (17.1 ft) at wide angle and 3.2 m (10.5 ft) at telephoto, ISO was not specified.

Box Contents

Supplied in the box are:

 • Pentax Optio 550
 • 16 MB Secure Digital (SD) card
 • Battery Pack D-LI7 (1800 mAh)
 • Battery Charger D-BC7
 • Wrist strap
 • USB Cable
 • Video Cable (A/V)
 • 3D Image Viewer
 • CD-ROM (Driver, Appl. software)
 • Manual