
4 0 c m
26cm
actual image size: 18cm x 32cm
Description
Sitters for the earliest portrait photographs had to sit completely still for as long as 20 minutes; the slightest movement would cause the photograph to blur. This device was designed to counteract the problem, keeping the subject rigidly in place.
Image Details
Image Ref.
10301588
© National Museum of Science & Media / Science & Society Picture Library