Omegon AC 70/400 BackPack AZ Manuale utente

Instructions Manual

Omegon® AC 70/400 BackPack AZ

English version 3.2017 Rev A Art-Nr. 53090

The Omegon® AC 70/400 BackPack AZ

Congratulations on the purchase of the new Omegon® AC 70/400 BackPack AZ. This telescope will

give you hours of fun, with its optical glass lens and light gathering capability it is the ideal

companion to start in the world of terrestrial view and the night sky. With this telescope, you will be

able to see the craters on the Moon, Sun Spots (with the supplier Sun filter), the Galilean Moons and

the rings of Saturn.

Included parts.

a - Aluminium Tripod;

b- Optical tube;

c- 5x finderscope;

d- K20mm eyepiece 1.25”;

e - K10mmr eyepiece 1.25”

f - Prism 1.25”;

g - Sun filter;

h –Back pack (not shown)

1. Knowing your telescope.

1.1. The Optical Tube (b)

The optical tube is one of the two

main parts of the telescope. It has a

glass lens (objective) - (1) at one

end. The objective gathers light from objects. This telescope has a 70mm (2.7”) objective, this is the

lens diameter. On the opposite end of the objective there is the focuser (9). The focuser is a

mechanical system that extends a tube #5. It allows in combination with the prism (8) and one of the

two eyepieces K20mm (e) and K10mm (d) (included) to obtain a magnified image that can be

observed peeking through the eyepiece lens. The optical tube also carries a small telescope -

finderscope - (c) which is used to aim the optical tube to an object to be observed. A tripod is

required to point and a Sun filter can be used to observe the Sun.

1- Objective lens 2- Optical tube 3- Finderscope base

4- Brake (focuser) 5- Draw-tube 6- Eyepiece

7- Prism thumbscrew 8- Prism 9- Knob (focuser)

10- Dovetail

Figure 2. Optical Tube.

Figure 1. What’s included.

1.2. The tripod (a). The supplied aluminium tripod is used as a platform to place the optical tube.

Here are some details about the tripod’s head – figure 3.

A- Telescope base; B- Bubble level;

C- Hand Grip; D- Lock-az;

E- Tripod Leg; F- Lock (shaft);

G- Lock (telescope); H- ¼”-20 Camera thread;

I- Lock (tilt); J- Shaft.

1.2.1. Extending the tripod. The tripod is compact

and the metal legs can be extended into several

configurations. A central shaft allows additional

extension if required –figure 4.

The most stable configuration is, however, with the

tripod’s legs collapsed to their minimum. It’s

recommend using the collapsed tripod on a table top

for more comfort and stability.

1.2.2. Camera base (A). The tripod’s camera base (A)

is compatible with most photo and video cameras

having a ¼”-20 thread standard. It also allows to level

horizontally by using the integrated bubble level (B).

1.2.3. The hand grip (C). Is used to direct and point

the tripod to a certain direction it also acts as a brake

to fix the tripod to a certain tilt. Release to tilt the

camera base (A) –figure 5.

1.2.4. Rotating the tripod head in az.Release the

Lock-az (D). One can see that the tripod head now

rotates freely around the tripod’s shaft (J) – azimuth

movement. Tighten to lock in a specific azimuth

direction –figure 6.

Figure 3.

Figure 4.

Figure 5.

1.2.5 Using the shaft extension. Release the Lock

(shaft) –(F), so that the central metal shaft can

slide up and down. Make sure to re-tighten after

choosing the required position –figure 7.

1.2.6. Tilt the telescope base. There is an

additional possibility that allows tilting the

camera base. This is only necessary to fix the

telescope or a camera to the tripod. Release

the Lock (tilt) –(I) so that the Lock (telescope)

–(G) hand knob is accessed easily –figure 8.

2. 2. Getting Started.

2.2.1. First step is to fit the optical tube to the

tripod. Proceed as mentioned before in 1.2.6.

by tilting the telescope base (A). Use the Lock

(tilt) –(I) to tighten firmly the optical tube to

the tripod. The telescope dovetail (10) is also

Vixen-Style compatible and makes this

telescope compatible with many other

advanced mounts. The telescope should be

pointing in relation to the tripod has shown in

figure 10.

Make sure the grip (C) is pointing to the same side as the drawtube (5).

Did you know?

The Vixen-Style dovetail (10) with ¼”-20 camera thread makes the optical tube compatible with many

other more advanced mounts such as equatorial mounts and can even be used as a guide scope for

astrophotography.

Figure 6.

Figure 7.

Figure 8.

Figure 9. Figure 10.

2.2.2. Setting the findescope to the optical tube. To set the finderscope to the optical tube start by

removing the two thumbnuts from the respective screws and face the finderscope as shown. The

finderscope is used to aim the telescope to a target (like in a riffle) - figure 11 and figure 12.

Align the finderscope before using the telescope -

please look for instructions in Annex A.

2.2.3. Setting the prism and eyepiece to the focuser.

Simply slide the prism’s (f) metal barrel to the

focuser’s tube and fix using the two focuser’s

thumbscrews. Turn the screws so that the prism and

eyepiece do not fall or slide when observing. Choose

the K20mm eyepiece (e) and fix it to the prism too –

figure 13.

Your telescope should look like in figure 14.

3. First steps.

3.1. Learning to focus. Make sure to get used to use

the telescope during daytime. This is a great

telescope for terrestrial viewing too. Remove the

dust cap from the telescope’s objective. Point to an

object –at least half a mile (800 metres) away, it can

be a tree or a building. Make sure never to point to

the Sun (or its vicinity without using a full aperture

Sun filter).

Now rack the focuser all the way in. Use the Knob

(focuser) (9) and slowly start racking-out the

drawtube (5). This will expose the chromed draw-

tube (5). Look through the eyepiece when doing this.

A sharp image will start to form. The point where

the image is very sharp is the focus. Use first the

Figure 11.

Figure 12.

Figure 13.

Figure 14.

K20mm eyepiece (e) which provides the lowest power but the brightest image. Replace the K20mm

with the supplied K10mm to get more magnification if necessary. You may need to re-focus when

changing eyepieces.

3.2. Sun observations. A telescope should never be pointed to the Sun or its vicinity. The Sun light

entering the telescope will concentrate in the eyepiece. It will cause permanent retina damage or

even blindness to the observer. For Sun observation, a dedicated front aperture filter is required

(supplied).

Before observing the Sun check the supplied Sun filter. The Sun filter is

made from a special coated plastic foil that is fragile and can easily be

scratched or pierced. Examine the solar filter with a strong incandescent

bubble light (placing the filter between the light bulb and you). Make

sure that no holes or scratches are visible. You should however see the filament of the light. Filter

with no holes or scratches are usual in good condition for Sun observation. 3.2.1. Fitting the solar

filter to the telescope. Now that the filter (3.2.) fit it to the telescope as shown. The filter should

have a tight fit to the telescope and should not fall-off during the Sun observation –figure 15 & 16.

4. Specifications and Features.

Objective

Aperture: 70mm

Focal length: 400mm

Focal ratio: f/5.7

Design: Achromat

Weight & Dimensions

Tube length: 1ft (30cm)

N.W. 4lb (1.7kg)

Finderscope

single lens 5x

Eyepieces

Design: Kellner

Focal length: 20mm and 10mm

Barrel size: 1.25” (31.75mm)

Filter thread M28.5x0.6

Solar Filter

Foil: Baader Astrosolar Film

Tripod

Max extension 4.5 ft. (134cm)

Min extension 1.5 ft (45cm)

Materials: ABS and anodized aluminium

Fit: ¼“-20 camera thread

Guarantee

Europe 2 years

U.S.A. and Canada 1 year from the date of

purchase.

Origin

P.R.C.

Children should only use this telescope for Sun observation with the supervision of an adult!

This telescope is not a toy and should be used with caution especially during daytime observations.

Children should always be teached about the dangers of pointing a telescope to the Sun!

Figure 15.

Figure 16.

5. What can been seen with this telescope?

Below you will find some examples of what you can expect to see when using this telescope.

5.1. The Moon is one of the most spectular objects

to be seen through a telescope. Even a small

telescope will reveal high detail of the Moon’s

surface. You will be able to see the craters on the

Moon’s surface and other features like the Marea.

The moon is a very bright object. It is better to

observe it when the Moon is not full. Try the

crescent Moon and look for features along the

terminator (between illuminated and dark surfaces).

5.2. Jupiter is the biggest planet of our solar system.

It is also one of the favorite targets for beginners.

Galileo was able to discover that the four tiny dots

that turn around the planet were in fact part of

Jupiters system of moons. With this telescope you

will not only be able to see Jupiter’s planet disc with

its two major discernible bands, but also its biggest

moons, Io, Europa, Ganymedes and Callisto.

5.3. The “lord of the rings” of the night skies, Saturn

is by far the most popular target for small

telescopes. Saturn’s rings are discernible even at

60x magnification. In a very good night you will be

able to see the Cassini’s division (the darker band

on the Saturn’s rings).

Annex A

5. Aligning the Finderscope.

Figure A. A distant object is centered at the telescope’s field

of view. In this example we have a house with a chimney.

The chimney is the reference point to place at the center of

the field of view. We first look through the telescope with

the lowest magnification possible (K20mm should be

preferrable). So we have the widest field of view.

STEP 1

Figure B. Looking through the finderscope we see the same

building but in this case the chimney is not centered. We

adjust the finderscope using the three thumbscrews so that

the finderscope moves slightly. This is enough to correct the

objects position in the finderscope. Trial and error is required

to get a satisfactory result. Make sure to tighten the 3 screws

after finishing so that the finderscope tube does not move.

STEP 2

Figure C. After playing with the three findercope

thumbscrews and some trial and error we get the

finderscope recticle close to the center (in this case the

chimney). The Finderscope is now ready to use!

STEP 3

Products or instructions may change without notice or obligation

Reproduction partial or complete is not permitted without written authorization.

Indice

Altri manuali Omegon Telescopio

Omegon

Omegon AC 50 Manuale utente

Omegon

Omegon Dobson 102/640 DOB Manuale utente

Omegon

Omegon N114/500 EQ-1 Manuale utente

Omegon

Omegon N114/900 EQ-1 Manuale utente

Omegon

Omegon Dobson 76/300 DOB Manuale utente

Omegon

Omegon EQ-500 X Manuale utente

Omegon

Omegon Bonview 20x100 Manuale utente

Omegon

Omegon Dobson Advanced 203 Manuale utente

Omegon

Omegon Advanced X 152 DOB Manuale utente

Omegon

Omegon 53306 Manuale utente

Omegon

Omegon AC 70/700 AZ-2 Manuale utente

Omegon

Omegon Maksutov Telescope 90/1250 OTA Manuale utente

Omegon

Omegon 80/400 OTA Manuale utente

Omegon

Omegon 150/750 EQ-4 Manuale utente

Omegon

Omegon 90/1000 EQ-2 Manuale utente

Omegon

Omegon Pro Ritchey Chretien 154 Manuale utente

Omegon

Omegon 750 EQ-3 Manuale utente

Manuali Telescopio popolari di altre marche

Meade

Meade 81005 Condor Manuale utente

Celestron

Celestron NexStar 6 SE Manuale utente

Meade

Meade 114 EQ-DS Manuale utente

Celestron

Celestron C4.5 Manuale utente

Meade

Meade LX200 CLASSIC Manuale utente

Leica

Leica 82 HD Manuale utente

Celestron

Celestron CPC DELUXE 800 HD Manuale utente

EASTCOLIGHT

EASTCOLIGHT 9920 Manuale utente

zoomion

zoomion Genesis 200 EQ Manuale utente

TEC

TEC APO 140 Manuale utente

Orion

Orion 7832 Manuale utente

Carson

Carson Skelescope SK-100 Manuale utente

SKY-WATCHER

SKY-WATCHER VIRTUOSO Manuale utente

Celestron

Celestron Novice 50 Manuale utente

Orion

Orion EZ Finder 7228 Manuale utente

cassini

cassini C-JRS Manuale utente

nedis

nedis SCTE5060WT Manuale utente

Meade

Meade Polaris 60EQ-D Manuale utente