1. Home
  2. top of the aat hierarchies
  3. Objects Facet
  4. Furnishings and Equipment (hierarchy name)
  5. Tools and Equipment (hierarchy name)
  6. equipment
  7. [equipment by process]
  8. image-making equipment
  9. photographic equipment
  10. photograph viewing equipment
  11. megalethoscopes
Scope note
Apparatuses invented by Carlo Ponti of Venice ca. 1870, for viewing large albumen photographs on thin paper, using a large lens to create the optical illusion of depth and perspective and having candles or kerosene lamps as a source of light. The photographs themselves were translucent, often colored and pierced with pinprick holes to create dramatic visual effects with backlighting, such as that of lights in a night scene.
Accepted term: 27-May-2024