Ключевые слова: black and white, blurred motion, blurred people, busting activity, busy atmosphere, busy convention, convention center, convention hall, crowd movement, dynamic atmosphere, dynamic crowd, energetic scene, event attendees, event photography, fastpaced event, lively event, monochromatic backdrop, monochrome setting, motion blur, rapid pace, time lapse photography, time lapse shot, trade fair, trade fair visitors, tradeshow,