
- New Metric Versions Available
- Chrome on Glass
- High Tolerance
- Superior to Etched and Filled Rulings
- Lines Parallel to Edge
- English and Metric Versions
High Precision Ronchi Ruling Glass targets are excellent for evaluating resolution, field distortion, and parfocal stability. Many different Linepairs Per Inch (LPI) and Linepairs Per Millimeter (LP/mm) versions available. 1", 2", 4" and 6" squares available.
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Ronchi Ruling 0.5" X 0.5" (72 lp/mm)
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NT66-339 | $90.00 |
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Ronchi Ruling 0.5" X 0.5" (72 lp/mm)
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NT66-340 | $95.00 |
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Ronchi Ruling 0.5" X 0.5" (100 lp/mm)
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NT66-341 | $115.00 |
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Ronchi Ruling 0.5" X 0.5" (120 lp/mm)
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NT66-342 | $125.00 |
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Ronchi Ruling 0.5" X 0.5" (145 lp/mm)
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NT66-343 | $135.00 |
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Ronchi Ruling 0.5" X 0.5" (165 lp/mm)
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NT66-344 | $140.00 |
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Ronchi Ruling 0.5" X 0.5" (200 lp/mm)
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NT66-345 | $150.00 |
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Ronchi Ruling 0.5" X 0.5" (240 lp/mm)
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NT66-346 | $180.00 |
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Ronchi Ruling 1" x 1" (5 lp/mm)
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NT58-775 | $50.00 |
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Ronchi Ruling 1" x 1" (10 lp/mm)
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NT58-776 | $55.00 |
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Ronchi Ruling 1" x 1" (20 lp/mm)
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NT58-777 | $75.00 |
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Ronchi Ruling 1" X 1" (30 lp/mm)
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NT66-347 | $90.00 |
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Ronchi Ruling 1" x 1" (40 lp/mm)
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NT58-778 | $130.00 |
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Ronchi Ruling 1" x 1" (50 lp/mm)
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NT58-779 | $140.00 |
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Ronchi Ruling 1" X 1" (60 lp/mm)
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NT66-348 | $135.00 |
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Ronchi Ruling 1" X 1" (72 lp/mm)
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NT66-349 | $140.00 |
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Ronchi Ruling 1" x 1" (80 lp/mm)
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NT62-199 | $150.00 |
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Ronchi Ruling 1" x 1" (100 lp/mm)
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NT58-780 | $205.00 |
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Ronchi Ruling 1" x 1" (120 lp/mm)
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NT62-201 | $215.00 |
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Ronchi Ruling 1" X 1" (145 lp/mm)
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NT66-350 | $215.00 |
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| Substrate | Soda Lime Glass |
| Thickness | 1.5mm nominal |
| Coating | Vacuum Deposited Chrome OD > 3.0 |
| Surface Flatness | 1 λ per inch |
| Surface Quality | 60-40 |
| Parallelism of Pattern to Substrate | ±1° |
| Line to Line Parallelism | ≤ 2 arcsec |
| Dimensional Tolerance | ±0.02" |
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