The Leica D-Lux 8 is a compact camera body measuring 130 x 69 x 34 mm with a volume of 304.98 cm³ and a weight of 397 g. It features a 3-inch touchscreen with a resolution of 1843k dots alongside a built-in electronic viewfinder (EVF) offering 2360k dot resolution, 100% coverage, and a maximum refresh rate of 60fps. The EVF is fixed and does not tilt, and the rear screen does not flip out. A hot shoe is present for attaching external flash accessories, as the camera has no built-in flash, and a lens hood is not included. The device is not weather-sealed and is not a system camera, with a specified operating temperature range of 0 °C to 40 °C.
The Leica D-Lux 8 uses a 17 MP CMOS sensor — neither back-illuminated nor stacked — with a maximum ISO of 25000 and a fixed zoom lens offering 3.1x optical zoom across a focal range of 10.9 mm to 34 mm. The widest aperture is f/1.7 at the minimum focal length, narrowing to f/2.8 at the maximum, with both ends closing down to f/16 at their smallest. The lens can focus as close as 0.5 m and supports infinity focus. Autofocus is handled through a 49-point system with AF tracking and touch autofocus, though phase-detection autofocus is not available. Built-in optical image stabilization is present, while sensor-shift stabilization is not. Manual controls cover focus, shutter speed, ISO, exposure, and white balance, and a two-stage shutter is included alongside burst mode for continuous shooting at 11 fps. The fastest mechanical shutter speed reaches 1/4000 s, with the electronic shutter pushing to 1/16000 s, a flash sync speed of 1/4000 s, and a maximum exposure time of 30 seconds.
The Leica D-Lux 8 records video at 4K (2160p) at 30 fps with a maximum bitrate of 100 Mbps, and also offers a 24p cinema mode for a more filmic frame rate. Continuous autofocus is available during recording, though phase-detection autofocus for video is not supported. Audio is captured through a built-in dual stereo microphone setup, but there is no external microphone input and no 3.5 mm audio jack. Slow-motion video recording is not available.
The Leica D-Lux 8 is powered by a removable and rechargeable 1025 mAh battery, allowing users to carry spares for extended shoots. A battery level indicator is built in to help monitor remaining charge during use.
The Leica D-Lux 8 supports RAW shooting and offers Wi-Fi 4 (802.11n) and Bluetooth 5 for wireless connectivity, including remote smartphone control. It features a USB Type-C port, an HDMI output, and an external memory slot for storage expansion, though dual card slots are not available. NFC and GPS are absent, and the hot shoe is a standard rather than advanced type. First-party live streaming support is also not included.
The Leica D-Lux 8 includes a USB 3 interface, enabling faster data transfer when connecting the camera to a computer or compatible device.