William Optics ZenithStar 80 User Manual download pdf (Page 6)

Connection Instructions

( Aligning R.D.F. )

Step-2

Use a 2mm Allen key to loosen

the setscrew on the left side

of the RDF, near the bracket

under the letter "R". Using a

2.5 mm Allen key make

adjustments to the Alt-Az

adjustments (marked R and

UP) until the red dot in the

reticule overlays the same

object as the center of the

eyepiece view.

Step-3

Using a high magnification

eyepiece (short focal length)

repeat this procedure for fine

alignment.

Step-1

Find a distant object in the

telescope with a low power

eyepiece.

P07

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P08

Crafting the Earth's Finest Astronmical Instruments

Usage

The Zenithstar FD series is designed as the ultimate, versatile short tube refractor. It is

perfect for travel, piggybacking/guiding scope, astrophotography, rich-field observations.

We recommend purchasing a WO 2" star diagonal to make the most of this telescope.

Because the Zenithstar FD is well suited to viewing nebulae, clusters, large galaxies and

comets, we recommend the use of high quality wide-angle eyepieces. The WO UWAN

series eyepieces are available in a variety of focal lengths and make a perfect complement

to this telescope.

Viewing the moon and planets is also very impressive at magnifications of 120X when

seeing conditions permit. To calculate the magnification of your telescope and eyepiece

combination, divide the telescope focal length in mm by the eyepiece focal length in mm.

Keep in mind that the atmosphere plays an important role in seeing conditions, and only

the best seeing conditions will support high power viewing. Additional power under less

than ideal seeing conditions will not result in an increase in viewable details, and lower

powered eyepieces should there be used under those conditions. It's easiest to locate

objects using low power eyepieces (20X magnification) and then zoom in by switching

to higher powered eyepieces. The largest field of view will be seen using a 12X low

power-wide field of view eyepiece.

A stable tripod or mount is recommended for optimal viewing. This includes high quality

photography tripods, and German Equatorial mounts, which are designed for astronomical

use and include precise tracking of celestial objects. Optional accessories from WO

include black anodized mounting rings and plates, super high quality 2" Quartz star

diagonals which provide for superior viewing and high quality images.

A recommended Alt-az. mount for this telescope is William Optics high-quality mount,

EazyTouch. This beautiful mount is easy to use and will provide a perfect, quick-to-set-

up addition to your collection.

The ZSFD is suitable for large-field astrophotography; the accessories Chart on page 03

provides additional details on photographic accessories for various CCD, digital and

film cameras.

Never aim your telescope or finderscope at the Sun without proper Solar filters installed

on the front of the telescope. Doing so for even a moment may permanently damage

your vision. Proper Solar filters consist of a filters made by reputable manufacturers,

designed to fit tightly over the front of the dew shield. Solar eyepiece filters are not

considered safe, and should not be used. With proper front mounted Solar filters, the

telescope will not be harmed by viewing the Sun. Contact your Authorized WO Dealer

for further information on the brands, sizes, and prices of proper solar filters.

The alignment of the finder needs to be performed only when necessary. We

recommend aligning during daytime by point telescope and finder at the same

far object.

View Field of Telescope.

(with WO Dielectric)

Alignment Setcrews

View Field of Red Dot Finder.

(with WO Erecting Illuminated

Red Dot Finder)

Reticule Selector

Brightness Adjustment

1 2 3 4 5 6 7 8 9 10 11 12

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William Optics ZenithStar 80 User Manual Page 6

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