| Question: | Why are the incompatible flashes(old types) unusable? Is there any way to use it? | Answer: | The camera performs automatic flash control by using reflecyted-light of pre-flash light. Therefore only flash units corresponding to pre-flash function of this model are available for flash control. An incompatible Minolta Program flash/Minolta Maxxum flash unit always fires fully; it is necessary to set the flash in manual mode, and the camera in M mode to set the aperture according to the adequate object distance. Generally guide No. and aperture and object distance have the following relation and adequate exposure is obtainable: Camera sensitivity: ISO 100 Guide No./ F No. = object distance(m) (Please refer to the instruction manual of Flash about the guide No.) *Please set the camera sensitibity ISO 64, 100, 200, 400 and 800. (When setting at Auto, it is not suitable as the sensitibity changes.) *When the camera sensibity is ISO 200/400/800, decrease the exposure at 1EV/2EV/3EV from the F No. calculated by the above relational formula ( Click 3 dial is equivqlent to 1 EV). *When the camera sensibity is ISO 64, increase the exposure at 2/3EV from the F No. calculated by the above relational formula ( Click 2 dial is equivqlent to 2/3 EV). Please note the above-mentioned is only reference; adjust the distance and aperture to get adequate exposure after taking trial photo. (It is convenient to check by using the histogram function.) Other incompatible flash units except Minolta Program flash/Minolta Maxxum flash units cannot be used . ( These flashes will not fire.) |
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