User manual METZ MECABLITZ 34 AF-3 N FOR NIKON

[. . . ] Flash fired directly in front of the eyes of a person or animal can damage the retina and lead to severe visual disorders - even blindness! â· Spent batteries should be immediately removed. Chemicals leaking out of spent batteries will damage the flashgun. Batteries should not be exposed to excessive heat, for instance sunshine, fire and the like! [. . . ] 1 Flash-ready indication The green light on the mecablitz illuminates when the flash capacitor is fully primed, thereby indicating flash readiness. This means that flash can be used for the next exposure. 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. 4) The red correct exposure light briefly illuminates when flash exposure was correct. 4 Information displayed in the camera's viewer The following table only gives a general survey. Green arrow Indicates that flashgun should be used or switched on. The mecablitz receives its information exclusively from the connected TTL-controlled camera. exposure measurement in TTL mode (TTL = through-the-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. You need not worry about adjustment of the light output. 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. A strip of film must be loaded in the camera if tests are to be conducted in TTL flash mode. The effective flash range can only be checked by the correct-exposure display (o. ) if the flash is triggered by the camera and not with the manual release on the flashgun!Different modes of flash synchronisation are possible, depending on the camera model. [. . . ] Remove grime and dust with a soft, dry cloth. Do not use cleaning agents as these could damage the plastic parts. Forming the flash capacitor The flash capacitor incorporated in the flashgun undergoes a physical change when the flashgun is not switched on for prolonged periods. For this reason it is necessary to switch on the flashgun for approx. [. . . ]