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FT-02.md
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| 1 | # FT-02: Reading distance |
| 2 | |
| 3 | <!-- Generated from field-tests/suite.json by tools/field_tests.py. Edit the JSON, not this file. --> |
| 4 | |
| 5 | **Category:** Distance · **Time:** about 10 minutes · **Run it and see results:** [https://openckey.org/tests/test?id=FT-02](https://openckey.org/tests/test?id=FT-02) |
| 6 | |
| 7 | ## What it checks |
| 8 | |
| 9 | A 2-inch CKey reads from arm's length, about 60 cm. |
| 10 | |
| 11 | ## Why |
| 12 | |
| 13 | Posters, shelf labels and screens are read from further away than a business card. Distance shrinks the code in the image exactly as print size does, so this shows how far the size results stretch. |
| 14 | |
| 15 | ## Test codes |
| 16 | |
| 17 | Print or open the sheet at [https://openckey.org/tests/sheet?id=FT-02](https://openckey.org/tests/sheet?id=FT-02). It is drawn by the CKey web SDK from the values below. |
| 18 | |
| 19 | | Code | Size | Version | Level | Layout | Style | Holds | |
| 20 | |---|---|---|---|---|---|---| |
| 21 | | A | 2.0 in | smallest that fits | M | standard | plain | `https://openckey.org/t/FT02-A` | |
| 22 | |
| 23 | ## Set up |
| 24 | |
| 25 | 1. Print the test sheet at 100% scale and check that the code is 2.0 inches (51 mm) wide. |
| 26 | 2. Tape it to a wall at eye level in even indoor light. |
| 27 | 3. Mark distances of 15, 30, 60, 100 and 150 cm from the wall. |
| 28 | |
| 29 | ## Steps |
| 30 | |
| 31 | 1. Stand at each distance in turn, holding the phone square to the sheet. |
| 32 | 2. Allow up to 5 seconds at each distance without zooming. |
| 33 | 3. Record whether it read. |
| 34 | |
| 35 | ## What to record |
| 36 | |
| 37 | - **Read within 5 seconds**, boolean, required. For each of: 15 cm, 30 cm, 60 cm, 100 cm, 150 cm. |
| 38 | |
| 39 | Every report also records the device, operating system, reader and its version, and the printer or screen. |
| 40 | |
| 41 | ## How to grade it |
| 42 | |
| 43 | - **Pass:** It read at 15, 30 and 60 cm. |
| 44 | - **Partial:** It read at 15 and 30 cm but not at 60 cm. |
| 45 | - **Fail:** It did not read at 30 cm. |
| 46 | |
| 47 | ## Report a result |
| 48 | |
| 49 | - On openckey.org: [https://openckey.org/tests/test?id=FT-02](https://openckey.org/tests/test?id=FT-02), with optional photos. |
| 50 | - On GitHub: [open a field-test report](https://github.com/clearkeysolutions/ckey/issues/new?template=field-test-report.yml&title=%5BFT-02%5D+) and choose FT-02. |
| 51 | |
| 52 | Both are published together at [https://openckey.org/tests](https://openckey.org/tests) and as JSON at [https://openckey.org/api/field/results](https://openckey.org/api/field/results). |