
Graticules Optics Microscope Calibration Products
GT Vision has worked with Graticules Optics for many years. As Graticules Optics are a UK based manufacturer, we are delighted to able to promote their products.
Graticules Optics has a large range of microscope calibration products so that microscopists can easily and accurately perform measurements with their microscope. Where customers need traceability and tracking, then Graticules Optics can provide calibration slides with UKAS or NPL certification.
In addition, the company has a range of speciality microscope products including counting chambers, asbestos calibration kits and so on.
Graticules Optics has always supplied us with excellent products and, when needed, timely and helpful advice.
Partner in precision micropatterns – delivering accuracy you can trust.
From reticles to resolution charts, Graticules Optics delivers world-class micropattern solutions, on time and to spec.
Graticules Optics – 70+ years of precision micropatterns for science and industry worldwide. We design and manufacture reticles, calibration scales, TEM grids, FIB lift-out grids, apertures, resolution charts, and custom solutions for industries worldwide.
We are unique in producing hotolithographic patterns on glass, film, and metal foil, with added capabilities in coatings, cementing, mounting, small optical assemblies, and photomasks.
Our philosophy is simple: deliver world-class products and services—on time, to specification, and with expert guidance. Continuous investment in technology and processes keeps us at the forefront of microscopy, metrology, defence, photonics, electro-optics, aerospace, and instrumentation.
Certified to ISO 9001:2015 (FS 708521), Graticules Optics proudly exports globally and is part of the SDI Group plc.
Where innovation meets precision – global leaders in reticles, calibration standards and custom micropattern solutions.

Graticules Optics clean room
Product range
- Standard microscope calibration slides
Range includes transmitted and reflected illumination. Scales from 10mm/0.1mm to 0.1mm/0.002mm
- Professional microscope calibration slides
These have the serial number embossed onto the slide for tracking purposes. These calibration slides are available with UKAS or NPL certification. Available for transmitted and reflected illumination. Scales from 10mm/0.1mm to 0.1mm/0.002mm
- Eyepiece reticles
These are available in a range of sizes to fit most common microscope eyepieces. In addition to standard reticles, there are also some speciality ones for asbestos testing, pharmaceutical testing, blood analysis etc
- Counting chambers
Chambers for particle counting in volumes of liquid as well as an extensive selection of specialist chambers for biological applications.
