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| Russian | English |
| рабочая дистанция | working distance (the distance from the front element of the lens to the subject; это не "минимальная дистанция фокусировки" Oles Usimov) |
| эффективная рабочая дистанция | effective working distance (the distance from the outer edge of the lens to the subject Oles Usimov) |