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Observing with the tele vue-60 – Tele Vue 60 User Manual

Page 8

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8

5. OBSERVING WITH THE TELE VUE-60

5.1

HOW TO POINT THE TELE VUE-60
A) LOW POWER EYEPIECE — By inserting low power eyepieces, the Tele Vue-

60 can be used as its own fi nder for locating objects to be observed at higher magnifi cations.
For the widest fi eld possible, you should use either the Tele Vue 32mm Plössl or the 24mm
Panoptic which provides viewing at 11x or 15x respectively with a whopping 4.3° true fi eld
(over 8 full moon diameters).

B) QWIK-POINT — This accessory projects a "red dot" where the telescope is

pointed and attaches to the telescope's dew shield. (See back page for instructions.)

5.2 EYEPIECE

RECOMMENDATIONS

The optical performance of your Tele Vue-60 telescope is based on its high quality

objective lens. However, every other item in the telescope’s light path will affect the fi nal
image quality. To obtain the highest performance from your Tele Vue-60 telescope, you
should select only eyepieces, prism or mirror diagonal assemblies by Tele Vue Optics .

Although the variety of eyepieces seems daunting, you only need a few to cover

a broad magnifi cation range. Choose the best eyepieces you can afford, rather than the
most. Many factors are involved in choosing the right eyepiece for you. Please call us for
advice. Below are our suggestions for getting started with your Tele Vue-60.

Starting with low power, the 24mm Panoptic at 15x provides the largest true

fi eld, 4.3°. For medium power, a 9mm Nagler Type 6 delivers 40x, great for terrestrial as
well as rich-fi eld deep sky observing. The 8mm Ethos would be a great alternative to the
9mm Nagler At high power your subject will appear to move through the fi eld quickly.
Therefore, if the eyepiece focal lengths were the same, an 82° Nagler eyepiece would
permit longer observing times before having to move the telescope. In practice, the true
fi eld differences for our high power recommendations are small because the magnifi cations
are different. For high power, choosing either a 2.5mm Nagler Type 6 (144x), or 3-6mm
Zoom (60x-120x) will give you a minimum of two minutes time to view an object on the
meridian (worst case) before having to reposition the telescope.

Although Ethos eyepieces are larger, heavier and more costly, the 100° appar-

ent fi eld of view gives a unique "wow" experience. Ethos 13mm, 10mm, 8mm, 6mm and
4.7mm, 3.7mm (with 110°) all work with the TV-60. The Delos line with its 20mm of eye
relief is excellent day or night for eyeglass wearers. Available focal lengths 17.3mm, 14mm,
12mm, 10mm, 8mm, 6mm, 4.5mm and 3.5mm.

Though the Tele Vue-60 is capable of signifi cantly higher powers, the number

of subjects bright enough for such magnifi cations are limited to the Moon, major planets
and some double stars. Please note going to higher powers than recommended produces
a larger image, but no resolution gain. Atmospheric turbulence will also often limit the
amount of magnifi cation that can be used.

An easy way to center bright objects is to remove the eyepiece
and look down into the diagonal from a foot away. Place the
bright object (moon, planet etc.) as close to center as possible.
Reinstall a low power eyepiece and further center the object.

9

Tele Vue-60

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

1¼" Eyepieces for Wide True Fields

40

Plössl

EPL-40.0

43

27.0

28

0.4

9.0

4.30

6.7

4

Y

32

Plössl

EPL-32.0

50

27.0

22

0.4

11.3

4.30

5.3

4

Y

24

Panoptic

EPO-24.0

68

27.0

15

0.5

15.0

4.30

4.0

6

Y*

13

Ethos

ETH-13.0

100

22.3

15

1.3

27.7

3.55

2.2

-

Y

16

Nagler 5

EN5-16.0

82

22.1

10

0.4

22.5

3.52

2.7

6

N

19

Panoptic

EPO-19.0

68

21.3

13

0.4

18.9

3.39

3.2

6

Y*

25

Plössl

EAP-25.0

50

21.2

17

0.3

14.4

3.37

4.2

4

N

17.3

Delos

EDL-17.3

72

21.2

20

0.9

20.8

3.37

2.9

-

Y

10

Ethos

ETH-10.0

100

17.7

15

1.1

36.0

2.82

1.7

-

Y

13

Nagler 6

EN6-13.0

82

17.6

12

0.4

27.7

2.80

2.2

7

Y*

14

Delos

EDL-14.0

72

17.3

20

0.9

25.7

2.75

2.3

-

Y

20

Plössl

EAP-20.0

50

17.1

14

0.2

18.0

2.72

3.3

4

N

12†

Nagler 4

EN4-12.0

82

17.1

17

1.0

30.0

2.72

2.0

6

Y

1¼" Eyepieces for Medium Powers

12

Delos

EDL-12.0

72

15.0

20

0.9

30.0

2.39

2.0

-

Y

11

Nagler 6

EN6-11.0

82

14.9

12

0.4

32.7

2.37

1.8

7

Y*

10

Delos

EDL-10.0

72

12.7

20

0.9

36.0

2.02

1.7

-

Y

15

Plössl

EAP-15.0

50

12.6

10

0.2

24.0

2.01

2.5

4

N

9

Nagler 6

EN6-09.0

82

12.4

12

0.4

40.0

1.97

1.5

7

Y*

11

Plössl

EAP-11.0

50

9.1

8

0.1

32.7

1.45

1.8

4

N

1¼" Eyepieces for Higher Powers

8

Ethos

ETH-08.0

100

13.9

15

1.0

45.0

2.21

1.3

-

Y

6

Ethos

ETH-06.0

100

10.4

15

1.0

60.0

1.66

1.0

-

Y

8

Delos

EDL-08.0

72

9.9

20

1.0

45.0

1.58

1.3

-

Y

7

Nagler 6

EN6-07.0

82

9.7

12

0.5

51.4

1.54

1.2

7

Y*

4.7

Ethos SX

ETH-04.7

110

8.9

15

1.3

76.6

1.42

0.8

-

Y

6

Delos

EDL-06.0

72

7.6

20

1.0

60.0

1.21

1.0

-

Y

3.7

Ethos SX

ETH-03.7

110

7.0

15

1.1

97.3

1.12

0.6

-

Y

5

Nagler 6

EN6-05.0

82

7.0

12

0.5

72.0

1.11

0.8

7

Y*

8

Plössl

EAP-08.0

50

6.5

6

0.1

45.0

1.03

1.3

4

N

4.5

Delos

EDL-04.5

72

5.6

20

1.1

80.0

0.89

0.8

-

Y

3.5

Nagler 6

EN6-03.5

82

4.8

12

0.5

102.9 0.76

0.6

7

Y*

3.5

Delos

EDL-03.5

72

4.4

20

1.1

102.9 0.70

0.6

-

Y

2.5

Nagler 6

EN6-02.5

82

3.4

12

0.5

144.0 0.54

0.4

7

Y*

1¼" Zoom Eyepieces for Medium and Higher Powers

6-3

Nagler

Zoom

ENZ-0306

50

5.1-2.6

10

0.3

60.0-

120.0

0.81-

0.41

1.0-

0.5

5

N

4-2

Nagler

Zoom

ENZ-0204

50

3.3-1.7

10

0.4

90.0-

180.0

0.53-

0.27

0.7-

0.3

5

N

†12mm Nagler T4 not recommended for daytime use. *Additional Dioptrx Adapter required