Landscape Mode. This is when you hold the camera in its normal, horizontal orientation to capture the image. The opposite is "portrait mode".

LCD. (Liquid Crystal Display). There are 2 types. First, a TFT high-resolution color display device like a very small TV set. Secondly, a monochrome (B and W) information display using just black alphanumeric characters on a grey or green background.

LED. (Light Emitting Diode). This refers to all the little red, green and yellow indicator lights used on most cameras, power supplies and electronic devices.

Li-ion. (Lithium ION). Some digital cameras are packaged with a lithium-ion re-chargeable battery pack. Lithium ION batteries are lighter but are more costly than Ni-MH or Ni-Cd (NiCad) rechargeables. One advantage is that Lithium cells can be recharged regardless of the amount of discharge; also, they are lighter and maintain a charge much better in colder temperatures than conventional batteries. Li-ion also holds a charge for longer when idle.

Lossless. Refers to storing an image in a non-compressed format, such as TIFF.

Low Pass Filter. Most DSLR's (Digital SLR's) employ a Low Pass Filter (LPF) or Anti-Aliasing (AA) filter in front of the sensor to help eliminate problems with color aliasing (moiré).

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