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2. Precedence diagram method - Wikipedia

   en.wikipedia.org/wiki/Precedence_Diagram_Method

   The precedence diagram method (PDM) is a tool for scheduling activities in a project plan.It is a method of constructing a project schedule network diagram that uses boxes, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.

3. Long-exposure photography - Wikipedia

   en.wikipedia.org/wiki/Long-exposure_photography

   Long-exposure, time-exposure, or slow-shutter photography involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements. Long-exposure photography captures one element that conventional photography does not: an extended period of time.

4. Night photography - Wikipedia

   en.wikipedia.org/wiki/Night_photography

   Night photography (also called nighttime photography) is the capturing of images outdoors between dusk and dawn. Night photographers generally have a choice between using artificial lighting and using a long exposure , exposing the shot for seconds, minutes, or hours in order to capture enough light to record an image.

5. Exposure value - Wikipedia

   en.wikipedia.org/wiki/Exposure_value

   Popular exposure chart type, showing exposure values EV (red lines) as combinations of aperture and shutter speed values. The green lines are sample program lines, by which a digital camera automatically selects both the shutter speed and the aperture for given exposure value (brightness of light), when set to Program mode (P) .

6. Exposure (photography) - Wikipedia

   en.wikipedia.org/wiki/Exposure_(photography)

   Exposure is a combination of the length of time and the illuminance at the photosensitive material. Exposure time is controlled in a camera by shutter speed, and the illuminance depends on the lens aperture and the scene luminance. Slower shutter speeds (exposing the medium for a longer period of time), greater lens apertures (admitting more ...

7. Reciprocity (photography) - Wikipedia

   en.wikipedia.org/wiki/Reciprocity_(photography)

   In photography, reciprocity refers to the relationship whereby the total light energy – proportional to the total exposure, the product of the light intensity and exposure time, controlled by aperture and shutter speed, respectively – determines the effect of the light on the film. That is, an increase of brightness by a certain factor is ...

8. Digital camera modes - Wikipedia

   en.wikipedia.org/wiki/Digital_camera_modes

   Exposure is further controlled in each of the above modes with an independent setting for: Ev: Exposure value enables an increase/decrease in image exposure compensation to make the resulting image brighter/darker, typically selectable in steps of whole or partial exposure "stops" (discrete widening/tightening of the aperture). Many cameras ...

9. Metering mode - Wikipedia

   en.wikipedia.org/wiki/Metering_mode

   In photography, the metering mode refers to the way in which a camera determines exposure. Cameras generally allow the user to select between spot, center-weighted average, or multi-zone metering modes. The different metering modes allow the user to select the most appropriate one for use in a variety of lighting conditions.