Copy the humiture in the darkroom environment are key, if the relative humidity, copy out of flat screen original film exists and irregular stripes and spots.

• 拷贝黑房的境况温湿度也不入格关头，如果境况湿度不小，拷贝不入来的陡网原版胶片上不离会活命不法规的花纹、斑不背。