The Stylus 790 is equipped with an Olympus aspherical glass 3x zoom lens, 6.7 - 20.1mm (38 - 114mm equivalent in 35mm photography), 10 elements in 8 groups with 3 aspherical lenses. It has a 10x digital zoom feature. The maximum aperture is F3.5 (W) / F5.0 (T). The lens zooms internally and is protected by a sliding lens barrier when powered down.
The CCD contrast-detect auto focus system covers from 19.7" (0.5m) to Infinity in normal mode. From 7.9" (0.2m) to infinity in Wide angle in Macro mode.
The built in speedlight features Auto, Red-eye reduction, Fill and Forced Off modes. Flash Working Range Wide: 0.66ft (0.2m) 12.5ft. (3.8m) at ISO 800 Tele: 2.0ft (0.6m) 8.5ft. (2.6m) at ISO 800. Flash recycle time is less than 5 seconds.
Two types of Red-eye reduction are offered:
On the top is the Power button and Shutter Release.
There is no optical viewfinder, you frame, review and perform menu operations on this large 2.5-inch HyperCrystal LCD monitor with approx. 230,000 pixels of resolution. It delivers a high contrast image with a 176° wide-view angle.
Controls on the back: Top is the zoom control which also functions as the magnified playback and index mode
when in play mode. The Mode dial with positions for Auto, Anti shake, Scene (23 different scenes), Shooting
guides (14 adjustments), Movie mode, Favorite selection, Playback mode. For some reason, along with the
Playback position on the mode dial, there's also the "arrow" Playback button. Both take you to playback mode.
The Play button also serves as the DPOF print button when reviewing images. The 4-way selector is used to
navigate menu screens and select images for playback. In record mode the "Up" button changes exposure
compensation, "Left" enables the macro focus modes, "Right" changes the flash mode and "Down" button enables
the self timer. The OK/FUNCtion button accepts menu selections and lets you change Mode (Auto/Program AE),
ISO, WB, Metering, Drive Mode. The MENU button calls up and dismisses the menu system. The bottom left button
in playback mode shows a history of picture, in shooting mode it shows grid help, auto help, Histogram, etc.
The Shadow adjustment button enables or disables this function, as in playback mode is used to the delete
An optional AC power multi-adapter(D-7AC) with the optional DC Coupler (CB-MA1) must be used to connect to the camera. The A/V Out port sends the audio/video to a television set, the video format is selectable for NTSC or PAL standard. Data I/O is via a Mass Storage compliant USB v1.1 port which is also PictBridge compatible for direct printing.
A black rubber O-ring goes around the I/O port door. The
camera is "weatherproof and is not damaged by water spray from any
direction" as long as the rubber ring is intact and the I/O port door
is properly closed.
Still images and movie clips are stored in the camera's 14.7MB of internal memory or on removable xD-Picture Card flash memory cards. Olympus brand xD-Picture Cards are required to use the camera's built-in Panorama feature. 1GB to 2GB xD-Picture cards are now available.
Power is supplied by a proprietary LI-42B 3.7v 740mAh Li-ion battery pack.
Olympus does not specify the battery runtime. The included LI-40C AC charger lets you
recharge one battery while using another. Lithium battery packs can be charged or "topped
off" at any time without shortening the service life of the battery.
The optional Olympus PT-041 underwater housing is made for the Stylus 790 so you can take your camera with you on your underwater excursions. The large 2.5-inch LCD, compact body size and four underwater scene modes make it the perfect camera to take along diving. And with Bright Capture Technology you'll be able to easily preview images on the LCD even in the darkness underwater.
The PT-041 underwater case is waterproof up to a water pressure equivalent to a depth of 40 meters. This case is perfect for fascinating underwater photography or capturing the thrill of water sports and activities. With its durable, high quality polycarbonate construction, it protects the camera from water while also cushioning it from knocks and bumps on land. Complete control of photo functions, such as zoom and flash mode, is also permitted.
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