Although they were internally organized by machines—cameras—early photographs resembled drawings and paintings because they depicted the world according to linear perspective. The camera obscura was popular with artists because it automatically modified a scene by compressing form and emphasizing tonal mass according to Western pictorial standards. The camera was not designed as a radical device to unleash a new way of seeing, but evolved to produce a predefined look that took into consideration formulas and procedures such as composition, angle and point of view, quality of light, and selection of subject matter. What was being represented remained unchanged. This does not diminish the camera’s importance in defining an image. As with most inventions, unforeseen side effects create unintentional changes. As imagemakers became more sophisticated they routinely used specific cameras and lenses to shape an image, and knowledgeable viewers can often trace the connections between the camera/lens and the resulting picture.

*linear perspective 선원근법 **camera obscura 암상자(초창기의 카메라)
***unleash 촉발시키다,

여기에서 unforeseen side effects와 unintentional changes가 정확히 뭘 의미하는 걸까요?