During the 1840s and 1850s, in the early days of photography, exposure times were notoriously long: the daguerreotype photographic method (producing an image on a silvered copper plate) could take several minutes to complete, resulting in blurred images as sitters shifted position or adjusted their limbs.
在1840年代和1850年代，摄影的早期阶段，曝光时间非常长：达盖尔银版摄影法（在镀银铜板上成像）可能需要几分钟才能完成，导致人物在移动或调整姿势时产生模糊的图像。
illustrated the development of Victorian photography.
展示了维多利亚时代摄影的发展。
What made photography develop in the Victorian period?
是什么促使摄影在维多利亚时期发展？
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。