An afternoon of two free online talks has been announced on 20th June 2025, looking at the discovery of arsenic in the cardboard mounts of 19th century stereoscopic photographs, ways to mitigate any risks, and the wealth and value of information within the images.
Category: History and Research
Dating British Stereoscopic Photographs to 1857
Thanks to new research, it's now possible to date some British stereoscopic photographs to 1857 using clues within the images.
Royal Photographic Society Historical Group: A Visit to Lacock Abbey and the Fox Talbot Museum, with a 3-D Talk by the Brian May Archive of Stereoscopy
Join the RPS Historical Group on a special visit to the birthplace of photography, Lacock Abbey, the home of William Henry Fox Talbot, inventor of the negative/positive process of photography on Tuesday 4th March 2025.
Toxic Heavy Metals Found in 19th Century Stereocard Mounts
A research paper published this week by Kim Bell and Robin Canham, from Queen's University, Ontario, Canada, has revealed that some 19th century coloured stereocard mounts contain toxic heavy metals.
What Killed 1950s 3-D Films?
If you're looking for some interesting reading during this Twixmas break, I recommend you head over to our friends at the 3-D Film Archive and check out this brilliantly researched post by Jack Theakston: 'What Killed 3D Films?'.
A Stereoscopic Trip to Hawaii Over a Hundred Years Ago
This stereoscopic adventure started with 24 glass 3-D negatives of Hawaii, taken by an amateur in the 1910s. Through his amazing research, Denis has identified a long-lost Hawaiian event, those in attendance, a royal estate, and the world-travelling photographer himself, offering an immersive magical glimpse into a forgotten era.
Early Stereo Daguerreotypes and Lithographs Published by Jules Duboscq
Photo Historian Denis Pellerin explores the early stereoscopic works published by Jules Duboscq and shares some amazing very early 3-D images.
New Stereoviews Website from the Jonathan Ross Collection
Launching especially for Stereoscopy Day 2024, collector Jonathan Ross has made his collection of stereoviews accessible online for the first time.
Mr. Mackenstein’s Trial Stereoscopic Autochromes
Photo Historian Denis Pellerin unveils his amazing research into Hermann Josef Hubert Mackenstein. Exploring his autochrome work, as well as his camera manufacturing.
Remarkable Photographic Historian Denis Pellerin Awarded the Freedom of the City of London
The Lord Mayor Professor Michael Mainelli has awarded 40 recipients from a broad spectrum of sectors the Freedom of the City of London for their outstanding contributions in their respective fields, including Denis Pellerin as a remarkable photographic historian.










