At the forefront of optical calibration, we employ state-of-the-art technology, including Scanning Electron Microscopes (SEMs), laser microscopes, and profilometers capable of nanometer-range resolution. Our expertise allows us to handle large volume batches with ease, ensuring each orifice and slit we produce meets the highest standards of precision.


Explore our comprehensive selection of Optical Products and Lenox Orifices™, each available with detailed specifications to meet your needs. For requirements outside our standard offerings in terms of orifice sizes, tolerances, or shapes, we invite you to Request a Quote. Easily find your desired solution from our organized list for a streamlined selection process.

Standard Aperture

Standard Apertures

High Power Aperture

Standard Slit

Standard Slits

Diamond Slit

High Power Slits

25 millimeter optical mount



Photo Pinhole

Pinhole Photography

ANAB Accredited Logo

For those seeking assurance and precision, Lenox offers individual calibration certificates for our optically calibrated components. These certificates are the result of meticulous measurements performed with our optical Coordinate Measuring Machines (CMMs), which are calibrated in accordance with the ISO 17025 standard.