Our customer shows us today how a magnetic shutter of a pinhole camera was created from two small magnets.
Aperture shutter of a pinhole camera
With a pinhole camera, it is important that the shutter of a screen (= entry hole for the light) can be guided completely free from the housing and back there. This is very important. The film must be in the correct position. With this shutter implemented here, a ringmagnet is used on the inside and a discmagnet on the outside.
It’s rustproof aluminum aperture itself is not magnetic. The ring magnet is inside. The disc magnet was worked into the purple cover cap. This results in an optimal attraction and holding force when guiding the cap back and forth. It just makes a quiet „clack“; And lasts great!
You will be amazed at the magnetic force of the neodymium magnets. These are small power magnets due to the neodymium-iron-boron used.
Most of our neodymium disc magnets have the magnetic poles on the two opposite circular surfaces (axial magnetization). Some magnetic disks are magnetized diametrically.
With the different neodymium ring magnets from the Magnet-Shop range, you get powerful permanent magnets that can be used for a wide variety of purposes.
Similar to our disc magnets, we offer you a choice between axially and diametrically magnetized ring magnets.