The TG-850 uses an internal 5x optical zoom lens to assist you in composing your images. It has a maximum aperture of f/3.5-5.7 and a 35mm equivalent of 21-105mm. Sensor-shift optical image stabilization helps to keep your images sharp in low-light and when you are on the move.
Providing the image capturing power and accuracy to the camera is a 16-Megapixel BSI CMOS image sensor and TruePic VII image processor. These attribute to the image quality and overall performance of the camera. The processor also controls all of the automatic shooting settings as well as the processing of the Art Filters and special shooting modes.
Also shown above is the compact built-in flash unit and LED focus assist light. The compact flash is not incredibly powerful but will come in handy at short ranges. The LED light works as a focus assist lamp, speeding up the AF system in low-light situations.
Composing your images is accomplished with the 3.0-inch, 460k dot Tilting LCD screen. This bright screen shows the entire shooting frame and is very detailed, making it a pleasure to shoot with. It also shows your captured images and menu systems with great clarity.
The LCD tilts a full 180°, which allows you to easily frame photos in difficult situations. With the screen tilted all the way, it makes it really easy to capture self-portraits. When the screen is tilted, it takes away from the shockproof and crushproof features, as the screen can not hold up when not closed.
Olympus has kept the top of the camera as simple and easy to use as possible. The few controls are well placed and easy to operate in all shooting situations. From left to right you have the power button, shutter release and zoom lever on the right.
Controls on Back: At the top, the controls start with the dedicated video recording button that is on the right side of the thumb grip. Under that you will find the mode dial which gives you quick and easy access to all of the camera's shooting modes. Next is the playback button and 4-way controller. The 4-way controller allows you to navigate the menu systems as well as acting as a shortcut to the INFO, flash and burst/timer settings. Finally at the bottom you have the MENU button.
On the right side of the camera you will find the input/output ports hidden under a waterproof door. On top is the high speed USB port, which is used to transfer images from the camera as well as to charge it. On the bottom is the HDMI output that allows you to connect to any HDTV with an optional HDMI cable to view your images and videos. Between the two ports are the SD card slot and the battery slot.
The camera saves its images to SD/SDHC/SDXC memory cards. Next to the memory card, you can also get a good look at the rubber gasket that keeps this compartment dry and dust-free. The camera is shown above with the SanDisk Extreme Pro UHS-1 8GB SDHC memory card that was used to test the camera.
Powering the TG-850 is a 3.7V, 925mAh rechargeable Li-ion battery. Olympus claims that this battery is capable of providing you with up to 300 still images or 91 minutes of continuous video recording on a single charge. The camera charges the battery inside the camera with the USB power adapter shown above.