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R66 optical resolution chart, star test target 5 deg. (EMS)

Star Test Chart with 72 Sectors, 5 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 1.5mm thick

Dimensions - 50mm x 50mm

Method - Vacuum Deposited Chrome on Glass

Image Diameter - 25mm

Unresolved Centre Core - 0.4mm

Resolution charts and gratings

Please choose carefully. Returns of this item are subject to approval.

Updated: 11-10-2025

Code	Pack Size	Availability	Price	Updated: 11-10-2025
EMS68098-09	Each	0 in stock (?)	P.O.R.	Quote

* Ordering Schedule

This item is available for back-order where 0 stock is listed.
We order from this manufacturer weekly, with an estimated lead time of 4 weeks.

This is 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.