Xit XTDF18UNV Instruction Manual download pdf (Page 20)

Guide number of different focus length range

GN56 ISO 100 (meters / feet)

-19-

1/1

1/2

1/4

1/8

1/16

1/32

1/64

1/128

28 35 50 70

20/66 22/72.6 25/82 27/88.6

30/98.3 33/109.2

12.2/40.1 15.3/45.9

17.7/58.1 19.1/62.7 21.9/71.9 24/87.7

8.8/28.9 11/36.1 12.5/41 13.5/44.3 15.5/50.9 17/55.8

6.3/20.7 7.8/25.6 8.8/28.9 9.5/31.2 11/36.1 12/39.4

4.4/14.4 5.5/18 6.3/20.7 6.8/22.3 7.8/25.6 8.5/27.9

3.1/10.2 3.9/12.8 4.4/14.4 4.8/15.7 5.5/18 6/19.7

2.5/8.2 3.2/10.5 3.1/10.2 3.4/11.2 3.9/12.8 4.3/14.1

2.5/8.2 2.7/8.9 3.2/10.5 3.7/12.1 4.4/14.4 4.7/15.4

105

36/118.1

26.2/86

18.5/60.7

13.1/43

9.3/30.5

6.5/21.3

4.6/15.1

5.1/16.7

Coverage(MM)

Flash

output

1 2 ... 15 16 17 18 19 20 21 22

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Xit XTDF18UNV Instruction Manual Page 20