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R60 optical resolution chart, NBS 25 test chart (EMS)

R60 NBS 25 Test Chart

3-30 Lines per mm Chrome surface image B270 Glass 50mm x 50mm

A series of gratings diminishing in size as they go towards the central target. Lines range from 3 lines per mm to 20 lines per mm. Supplied as a positive high contrast chrome image on glass substrate 50mm x 50mm.

Also available in low contrast and negative form.

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

Updated: 04-06-2026

Code	Pack Size	Availability	Price	Updated: 04-06-2026
EMS68098-10	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.