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一、主要性能银燕BY—30TD型闪光灯是美能达、海鸥300型相机的专用闪光灯,该灯采用低电压微电流触发电路,保证相机电子快门使用可靠。当充电至预备指示灯亮时,可自动点燃相机取景器的充电指示灯,并能自动将快门调定1/60秒(B门除外),以保证快门与闪光同步。该灯具有一个手控档和两个自动档F_4和F_8,因采用可控硅闸流式节能电路,充电快为0.5～10秒,耗电少。该灯能配合28～38mm变焦镜头分4档调节照明范围,可上仰、左右旋转各90°,可任意反射摄影。置50mm标准档,闪光指数达GN30(ASA100),能满足广
First, the main performance Silver Yan BY-30TD-type flash Minolta, Seagull 300-type camera dedicated flash, the lamp uses low-voltage micro-current trigger circuit to ensure the use of electronic camera shutter reliable. When the charge to the standby indicator light is on, it automatically ignites the camera viewfinder charging indicator and automatically adjusts the shutter 1/60 second (except for B) to ensure that the shutter and flash synchronization. The lamp has a manual gear and two automatic files F_4 and F_8, due to the use of thyristor-type energy-saving circuit, charging fast for 0.5 to 10 seconds, less power consumption. The lamp can be adjusted with 28 ~ 38mm zoom lens sub-4 file lighting range, can Yang, left and right rotation of 90 °, can be arbitrary reflection photography. Set 50mm standard file, flash index up to GN30 (ASA100), to meet the wide