User manual SEKONIC FLASHMATE L-308S

[. . . ] FLASHMATE Operating Manual s SAFETY PRECAUTIONS WARNING and CAUTION This manual uses the following safety labels for that you must follow. WARNING CAUTION NOTE: Indicates hazards or unsafe practices that can result in severe personal injury or death. Indicates hazards or unsafe practices that can result in the personal injury or damage to your L-308S exposure meter. Provides the reference information and related functions that are useful in operating the L-308S. q Please place in a location where an infant cannot reach and accidentally get the strap wrapped around his or her neck. [. . . ] The mode switching sequence is as follows. MODE Shutter Speed Priority mode (ambient light) [see page 10] EV mode (ambient light) [see page 11] Cord Flash [see page 14] Auto Reset Cordless Flash mode [see page 16] 4. Basic Operation 2) Interchangeably switch between EV mode and Shutter Speed Priority mode by pressing the Mode button e while holding down the ISO button i in Ambient mode. Measurement value also will be automatically calculated when a switch is made after measuring. MODE ISO REFERENCE: · Ambient light refers to continuous light like natural light (sunlight), tungsten lamps or fluorescent lamps. · Flash light is a brief, intense burst of light made by such as electronic flash units or flash bulbs. 4. When set for incident light Incident light measuring is the measurement method that employs either the Lumisphere or Lumidisc functions. Measure with the lumisphere ai med in the camera direction at the position of the subject. 1) Using Lumisphere to Measure Lumisphere is used to measure people and buildings and other such solid objects. Measurements are basically made by the method of measuring with the Lumisphere aimed in the camera direction (more precisely, in the direction of the lens axis) at the position of the subject. 2) Using Lumidisc to Measure This is used to measure manuscripts, paintings or other flat copy, or otherwise for measuring light contrast (see page 18) or using as an illumino meter. To switch to the Lumidisc function, slide the Lumisphere mounting to the right (same as if measuring reflected light), insert at an angle section B of the Lumidisc into slot A of the light receiver and then press down the strap eyelet C to secure the Lumidisc. Strap eyelet C Slot A Section B Lumidisc The Lumidisc is removed in reverse order to the mounting method. At this time the strap eyelet of the Lumidisc should be pulled away from the main unit. NOTE: q Be sure to handle the Lumidisc correctly to prevent damage that may occur if mounting or removal is incorrect. q Do not fit the Lumidisc next to the Lumisphere when you take incident light metering Otherwise, the Limidisc will affect the exposure in reading. Never use organic cleaners (like thinner or benzene) to clean Lumisphere. lumisphere. 4. When set for reflected light Point the lens of the exposure meter toward the part of the subject to be measured from the camera position or from the camera direction and then measure. 1) This method is used to measure the brightness (luminance) of light reflected from the subject and is useful for metering subjects that cannot be approached or light-generating subjects (neon signs, etc. ), highly reflective surfaces or translucent subjects (stained glass, etc. ). 2) Point the lens of the exposure meter toward the part of the subject to be measured from the camera position or from the camera direction and then measure. NOTE: q If you measure from the camera position, the entire object is measured in average. In such cases please adjust brightness. 1-2 EV mode 1) Press Mode button e to select mode. MODE 5. While pressing the measuring button, the meter measures continuously until it is released. Measurement value (EV) REFERENCE: · EV (exposure value) is the reading that logarithmically expresses the constant quantity of light combined from the shutter speed and aperture value. · The relationship between aperture value (AV), shutter speed value (TV = Time Value) and EV is EV = AV + TV. From this relationship formula, the number of ways that the aperture and shutter speed can be combined against a certain constant EV can be calculated. · With the ambient light Shutter Speed Priority mode, if the Up and Down buttons are pressed after measuring, the shutter speed value will change and in accompaniment of that an appropriate aperture value (measuring value) will be displayed. Aperture Value & Shutter Speed Value, EV Contrast Table Horizontal axis is for aperture values and the vertical axis is for shutter speed values. Measurement 1-3 Cinematography 1) Press Mode button e to select Shutter Speed Priority mode. 2) Press the Up button y or Down button u to select the cine speed for the camera that will be used. MODE The following cine speeds will be displayed after 1/6000 and 1/8000: 8, 12, 16, 18, 24, 25, 30, 32, 60 and 128 fs. [. . . ] REFERENCE: · To determine exposure in incident light, turne ON botn main light source and secondary light source, point the Lumisphere at the camera lens axis and then measure. EV Difference of Measuring Value Contrast Ratio 6. How to use an incident illuminance (LUX or FC) meter 1) 2) 3) 4) Mount the Lumidisc accessory (see page 8). Determine the illuminance (lux) from the calculation table using the measured EV. EV value Lux conversion table EV value Foot candle (FC) conversion table 6. [. . . ]