Thank you for answering. No I haven't where can I learn about those? What search term would you suggest? do you know how polarised film is made? My impression from a long time ago it consists of lines for linear and circles for radial. How close together are the lines? or is this a metaphor for...
Is there a kind of film which will preserve polarisation? The film I have had suggested is:-
PAN F PLUS 35MM
35mm, ISO 50, high contrast, super sharp black & white film with very fine grain. Ideal for studio photography and bright, natural light.
Slow speed ISO 50
Exceptionally fine grain...
I am a 60 year old tinkerer who enjoyed science at school and studied architecture. Now I make things and enjoy having ideas and experimenting with them. I came here to ask a question about optics, polarisation and old school black and white film stuff
I want to expose a very fine grain film where an image disguises a message but when viewing the through polarising filter allows the message to be revealeded. I envisage exposing the B & W image that is light by light polarised through a positive mask of the message and simultaneously a negative...