ISO 12233: Ver. QA-77 Enhanced digital camera resolution chart
Please Note
This chart does not conform to the updated ISO 12233:2014 standard. We recommend the Photographic ISO 12233:2014 E-SFR chart for testing that does not specifically require the old chart.
Based on ISO 12233:2000, the QA-77 has all of the original features as the QA-72 plus several new ones, such as; Star Sector target; 5° slant bar; 5° dark gray square for SFR analysis as well as a greater resolution range, from 100 – 4000 Line Width / Pixel Height and hyperbolic wedges.
Details
Notes: QA-77-4-P-RM will not contain gray features, it will consist of black and white line work only.
This chart is used to measure sharpness from slanted-edge patterns (as Spatial Frequency Response = SFR) using the Imatest SFR module. It can also measure resolution from the hyperbolic wedges using the Imatest Wedge module (a part of Rescharts).
Technical Notes: Enhanced Digital Camera Resolution Chart QA-77_spec_v1-05.pdf
| Polarity | Active Area | Refl. Material |
|---|---|---|
| Positive | 100mm × 178mm (3.93701″ x 7.01″) | QA-77-2-P-RM |
| Positive | 200mm × 356mm (7.87″ x 14.01″) | QA-77-P-RM |
| Positive | 400mm × 711mm (15.75″ x 27.99″) | QA-77-3-P-RM |
| Positive | 800mm × 1422mm (31.50″ x 55.98″) | QA-77-4-P-RM |
相關商品
ISO & CPIQ Standard Test Charts
測試圖卡