Meade ETX-90EC instruction manual Eyepiece 2. Viewfinder

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19

18

(on left fork arm)

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16

15

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12

1 2 5

3

4

Fig. 1: The ETX-90EC Astro Telescope.

Features of the ETX-90EC and ETX-125EC are identical, with the exception of the siz e of optical tube and the type of viewfinder included as standard equipment.

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7

(on both sides)

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9

21

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1.Eyepiece

2.Viewfinder:

ETX-90EC: 8 x 21mm Erect-Image Viewfinder

ETX-125EC: 8 x 25mm Right-Angle Viewfinder

3.Eyepiece holder thumbscrew

4.90° eyepiece holder

5.Optical tube: ETX-90EC: 90mm clear aperture ETX-125EC: 127mm clear aperture

6.Vertical (or Declination) lock

7.Fork-mount attachment screws

8.Fork arm

9.Focus knob

10.Horizontal (or Right Ascension) lock

11.Computer control panel

12.Drive base

13.Hole cover for optional tripod legs (2)

14.Right Ascension (R.A.) setting circle

15.1/4-20 photo tripod adapter block 16.Flip-mirror control knobs

17.Photo port

18.Declination (Dec.) setting circle (on left fork arm)

19.Viewfinder alignment screws

20.Viewfinder bracket

21.Electronic controller with attached coil cord