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Tele Vue NP101 User Manual

Page 4

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Tele Vue-NP101/NP101is

Focal

Length

(mm)

Type

Product Code

Apparent

Field (deg)

Field Stop Dia.

(mm)

Eye Relief

(mm)

Weight

(lb.)

Mag.

True

Field

(deg)

Exit

Pupil

(mm)

# of

Elem.

Dioptrx

Ready

2" Eyepieces for Wide True Fields

55

Plössl

EPL-55.0

50

46.0

38

1.1

9.8

4.88

10.3

4

Y

41

Panoptic

EPO-41.0

68

46.0

27

2.1

13.2

4.88

7.7

6

Y

31

Nagler 5

EN5-31.0

82

42.0

19

2.2

17.4

4.46

5.8

6

Y

35

Panoptic

EPO-35.0

68

38.7

24

1.6

15.4

4.11

6.5

6

Y

21

Ethos

ETH-21.0

100

36.2

15

2.3

25.7

3.84

3.9

-

Y

26

Nagler 5

EN5-26.0

82

35.0

16

1.6

20.8

3.71

4.9

6

Y

22

Nagler 4

EN4-22.0

82

31.1

19

1.5

24.5

3.30

4.1

7

Y

27

Panoptic

EPO-27.0

68

30.5

19

1.0

20.0

3.24

5.1

6

Y

17

Ethos

ETH-17.0

100

29.6

15

1.6

31.8

3.14

3.2

-

Y

20

Nagler 5

EN5-20.0

82

27.4

12

1.0

27.0

2.91

3.7

6

Y*

17

Nagler 4

EN4-17.0

82

24.3

17

1.6

31.8

2.58

3.2

7

Y

1¼" Eyepieces for Wide True Fields

40

Plössl

EPL-40.0

43

27.0

28

0.4

13.5

2.87

7.5

4

Y

32

Plössl

EPL-32.0

50

27.0

22

0.4

16.9

2.87

6.0

4

Y

24

Panoptic

EPO-24.0

68

27.0

15

0.5

22.5

2.87

4.5

6

Y*

13

Ethos

ETH-13.0

100

22.3

15

1.3

41.5

2.37

2.4

-

Y

16

Nagler 5

EN5-16.0

82

22.1

10

0.4

33.8

2.35

3.0

6

N

19

Panoptic

EPO-19.0

68

21.3

13

0.4

28.4

2.26

3.6

6

Y*

25

Plössl

EAP-25.0

50

21.2

17

0.3

21.6

2.25

4.7

4

N

17.3

Delos

EDL-17.3

72

21.2

20

0.9

31.2

2.25

3.2

-

Y

10

Ethos

ETH-10.0

100

17.7

15

1.1

54.0

1.88

1.9

-

Y

13

Nagler 6

EN6-13.0

82

17.6

12

0.4

41.5

1.87

2.4

7

Y*

14

Delos

EDL-14.0

72

17.3

20

0.9

38.6

1.84

2.6

-

Y

20

Plössl

EAP-20.0

50

17.1

14

0.2

27.0

1.81

3.7

4

N

12

Nagler 4

EN4-12.0

82

17.1

17

1.0

45.0

1.81

2.2

6

Y

1¼" Eyepieces for Medium Powers

12

Delos

EDL-12.0

72

15.0

20

0.9

45.0

1.59

2.2

-

Y

11

Nagler 6

EN6-11.0

82

14.9

12

0.4

49.1

1.58

2.1

7

Y*

10

Delos

EDL-10.0

72

12.7

20

0.9

54.0

1.35

1.9

-

Y

15

Plössl

EAP-15.0

50

12.6

10

0.2

36.0

1.34

2.8

4

N

9

Nagler 6

EN6-09.0

82

12.4

12

0.4

60.0

1.32

1.7

7

Y*

11

Plössl

EAP-11.0

50

9.1

8

0.1

49.1

0.97

2.1

4

N

1¼" Eyepieces for Higher Powers

8

Ethos

ETH-08.0

100

13.9

15

1.0

67.5

1.47

1.5

-

Y

6

Ethos

ETH-06.0

100

10.4

15

1.0

90.0

1.10

1.1

-

Y

8

Delos

EDL-08.0

72

9.9

20

1.0

67.5

1.05

1.5

-

Y

7

Nagler 6

EN6-07.0

82

9.7

12

0.5

77.1

1.03

1.3

7

Y*

4.7

Ethos SX

ETH-04.7

110

8.9

15

1.3

114.9

0.95

0.9

-

Y

6

Delos

EDL-06.0

72

7.6

20

1.0

90.0

0.81

1.1

-

Y

3.7

Ethos SX

ETH-03.7

110

7.0

15

1.1

145.9

0.75

0.7

-

Y

5

Nagler 6

EN6-05.0

82

7.0

12

0.5

108.0

0.74

0.9

7

Y*

8

Plössl

EAP-08.0

50

6.5

6

0.1

67.5

0.69

1.5

4

N

4.5

Delos

EDL-04.5

72

5.6

20

1.1

120.0

0.59

0.8

-

Y

3.5

Nagler 6

EN6-03.5

82

4.8

12

0.5

154.3

0.51

0.7

7

Y*

3.5

Delos

EDL-03.5

72

4.4

20

1.1

154.3

0.47

0.7

-

Y

2.5

Nagler 6

EN6-02.5

82

3.4

12

0.5

216.0

0.36

0.5

7

Y*

1¼" Zoom Eyepieces for Medium and Higher Powers

6-3

Nagler Zoom

ENZ-0306

50

5.1-2.6

10

0.3

90.0-

180.0

0.54-

0.28

1.1-

0.6

5

N

4-2

Nagler Zoom

ENZ-0204

50

3.3-1.7

10

0.4

135.0-

270.0

0.35-

0.18

0.7-

0.4

5

N

Tele Vue recommends choosing low and medium power eyepieces in ratios of field stop diameters. For

example, factors of 1.4 or 2.0. When choosing higher power eyepieces, use ratios of magnification.

NOTE: True Field in degrees = (Field Stop dia./Telescope Focal Length) X 57.3° *Indicates additional Dioptrx Adapter required