R65 optical resolution chart, star test target 10 deg. (EMS)

Star Test Chart with 36 Sectors, 10 degree pitch.

Also known as Siemens or Sunburst Pattern. It is used qualitatively to demonstrate focusing effects, optical astigmatism and for rapid assessment of focal plane.

Glass Type and Thickness - B270 Glass 1.5mm thick

Dimensions - 50mm x 50mm

Method - Vacuum Deposited Chrome on Glass

Image Diameter - 25mm

Unresolved Centre Core - 0.2mm

Resolution charts and gratings

Updated: 27-02-2026
Code Pack Size Availability Price Updated: 27-02-2026
EMS68098-08 Each No ETA P.O.R. Quote

* Availability Explanation

X weeks – the estimated lead time, based on the average time taken previously to fill orders from this particular supplier. Lead times are from when we receive your order until when we fill your order. For delivery times, please see shipping information below.

In Stock – Plenty of stock on the shelf, ready to ship.

No ETA – our supplier has advised they cannot provide an accurate ETA. Generally there is some issue with supply, and it may be more than 6 months.