0.05mm Laserdrilled Pinhole Large 1" holder for telescope foucault

50 Micron pinhole for foucault tester or other scientific purposes. large 1 inch holder or 25.4mm in diameter. This pinhole is precision laserdrilled then mounted into an aluminum holder is 0.6mm thick and the pinhole is 0.05mm or only .002 of an inch thick. These pinholes are outstanding and unrivaled quality due to the thinness of the pinhole and the perfect forming of the aperture using the most advanced methods. Holders can be custom machined to and size that suits your needs These are scientific grade apertures and have been utilized by universities and laboratories. The second photo shows the pinhole at 800x under the microscope. Ask about combined shipping on multiple orders

Returns Accepted for this item if it's within 30 Days