User manual METZ MECABLITZ 28 AF-4 M

[. . . ] Insert the flashgun base into the camera's accessory shoe and tighten by turning the knurled screw so that the flashgun cannot slip and fall out! ⷠIn the event of flash shots with full light output and short recycling times with a rechargeable NiCad battery, observe an interval of at least 3 minutes after a series of 20 flashes. ⷠNEVER place material that is impervious to light in front of, or directly on, the reflector screen. The high energy of the flash light will burn the material or damage the screen if this is not observed! [. . . ] The mecablitz transmits different signals and messages to the camera when it is connected to the camera and is switched on. 1 Flash-ready indication The orange light on the mecablitz illuminates when the flash capacitor is fully primed, thereby indicating flash readiness. the flash readiness signal is transmitted to the camera where it is indicated by a corresponding display in the camera's viewfinder. On some cameras (depending on the model) the shutter is automatically changed to flash sync speed when flash readiness is reached. The flash will not be fired if the shutter is released before the flash ready light illuminates with the result that the exposure may be incorrect if the camera control circuit has already changed over to flash sync speed. 2 Automatic flash sync speed control Most system cameras automatically change to flash sync speed when flash readiness is reached. The flash sync shutter speeds may vary between 1/30th and 1/300th second, depending on the camera model. 3) The green correct exposure light briefly illuminates when flash exposure was correct. 4 Information displayed in the camera's viewfinder Camera models 8000i 1)/ 7000i 1)/ 700si 2) 9xi 2)/ 7xi 2)/ 5xi 2) Displays in viewer permanently illuminated Meaning The flashgun will be triggeres as soon as the release is pressed. Permanently illumina- The flashgun ist primed and ted2) or blinks slowly 1) ready for firing. Blinks 2) blinks rapidly 1) 28 The light output was sufficient for correct exposure. The mecablitz receives its information exclusively from the connected TTL-controlled camera. exposure measurement in TTL mode (TTL = throughthe-lens) is completed by the camera's sensor. This sensor measures the light reaching the film through the camera lens. An electronic control circuit within the camera transmits a stop signal to the flashgun as soon as the film has been exposed by the correct amount of light; the flash is then instantly cut out. The advantage of the TTL mode is that all factors influencing the exposure of the film (such as filters, change of aperture or variable aperture zooms) are taken into account. Spot , matrix or centre-weighted overall readings) offered by some cameras. If the actual distance is shorter than the minimum lighting distance, then this may result in overexposure. The speed of films to be exposed under TTL flash control must be between ISO 25/15°* and ISO 1000/31°. A strip of film must be loaded in the camera if tests are to be conducted in TTL flash mode. [. . . ] 1 Bounced flash Contrary to the dense shadows associated with full frontal flash as a result of the sharp drop of light from the foreground to the background, bounced flash will produce a soft and uniform rendition of both the subject and the background. For this purpose the reflector can be turned up vertically (up to 80°) so that the flash is , , bounced" back from a reflecting surface (e. PLEASE NOTE: Ensure that the reflector is tilted upwards at a sufficiently large angle so that no direct light from the reflector can fall upon the subject. Fill-in flash in daylight will soften harsh shadows and diminish the contrast, thereby producing a more balanced exposure when shooting against the light. [. . . ]