Thread and needle release
A thread and needle release is a feature found on some leaf shutters on the 1920s and 1930s, providing delayed action without implementing a proper self-timer. It consists of a hole in the shutter's front face, where you can introduce a needle, held by a long thread, before tripping the main release. The picture is taken when you pull the thread, so you can take pictures of yourself.
Links
In Japanese:
- Operation of a thread and needle release, explained with pictured on Nekosan's website
Glossary Terms