SKY-WATCHER EQ1 User Manual

O
perating the EQ2 mount
0
10
20
30
40
50
60
70
80
90
13
Dec. fine
adjustment
R.A. fine
adjustment
R.A. scale
Dec. lock knob
Dec. scale
The EQ2 mount has controls for both conventional altitude
(up-down) and azimuth (left-right) directions of motion. These
two adjustments are suggested for large direction changes
and for terrestrial viewing. Use the large knurled knob
located underneath for azimuth adjustments. Loosen the
knob and rotate the mount head around the azimuth axis.
Use the altitude adjustment T-bolts for altitude adjustments
(Fig.e).
In addition, this mount has Right Ascension (hour angle) and
declination direction controls for polar-aligned astronomical
observing. Loosen the lock knobs to make large direction
changes. Use the control cables for fine adjustment after the
lock knobs have both been locked (Fig.e1). An additional
scale is included for the altitude axis. This allows polar
alignment for your local latitude. (Fig.d2)
Altitude adjustment
(up-down)
Azimuth adjustment
(left-right)
Dec. fine adjustment
R.A. fine adjustment
R.A. scale
Dec. lock knob
R.A. lock knob
Dec. scale
Fig.f
U
s
ing the o
pt
io
nal
Ba
rlo
w lens
A Barlow is a negative lens which increases the magnifying
power of an eyepiece, while reducing the field of view. It
expands the cone of the focussed light before it reaches the
focal point, so that the telescope's focal length appears longer
to the eyepiece.
The Barlow is inserted between the focuser and the eyepiece in
a reflector, and usually between the diagonal and the eyepiece
in a refractor or a catadioptric (Fig.f). With some telescopes, it
can also be inserted between the focuser and the diagonal, and
in this position it gives even greater magnification. For example,
a 2X Barlow when inserted after the diagonal can become 3X
when placed in front of the diagonal.
In addition to increasing magnification, the benefits of using a
Barlow lens include improved eye relief, and reduced spherical
aberration in the eyepiece. For this reason, a Barlow plus a lens
often outperform a single lens producing the same
magnification. However, its greatest value may be that a Barlow
can potentially double the number of eyepiece in your
collection.
Barlow
Eyepiece
(Reflecting Telescopes)
Barlow
Diagonal
Eyepiece
(Refracting and
Maksutov Telescopes)
Fig.d1
Fig.d2
Fig.e1
Fig.e

SKY-WATCHER EQ1 Specifications

General

Brand	SKY-WATCHER
Model	EQ1
Category	Accessories
Language	English