Question about Meade 155W (5 x 50mm) Telescope

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I was just given a telescope and I need a reliable place to purchase parts. The main piece i'm looking for is an adjustor ring on the aiming scope and some different eye pieces

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Meade may have the part, but I doubt it. You can call them here:

http://www.meade.com/support/index.html

It might be easier just to replace the finder scope with one of these:
http://www.telescope.com/control/celestron/celestron-accessories/celestron-firstscope-accessory-kit

or this:
http://www.telescope.com/control/accessories/telescope-finder-scopes/orion-ez-finder-II-telescope-reflex-sight

Eyepieces can be purchased at many on-line retailers. Here are two:

http://www.telescope.com/control/telescope-eyepieces

or here:

http://www.agenaastro.com/

Posted on Aug 23, 2010

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2 Answers

How do i set site scope to aim at what i want


Not familiar with this particular model, but you may like to try using the main scope to obtain an image (doesn't matter what), then adjusting the small sighting scope to show the same object and securing it in place. HTH

Jul 14, 2016 | Vivitar Viv-tel-76700 75x/350x Reflector...

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We were given this as a gift with no manual. The on button must have been on a very long time. Is there a part, battery etc. that would need to be replaced in order to see out of it?


This appears to be a reflector telescope on an ALT AZ mount. It does not need power to be used. You might be referring to a red dot lighted finder scope on top of the main tube, which does have a small watch battery inside. The battery is available at Wal Mart and many other places.

Contact Galileo scopes for a manual here:

http://www.galileosplace.com/

Feb 22, 2011 | Galileo FS-102NT Telescope

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I have a newtonian telescope 76mm with SR4, H12.5 and H20. I have aligned the crosses up and can see through the viewfinder but nothing through the eye piece. Ive placed all the other lenses into the eye...


YOU MUST align the small finder scope with the main tube.

Point the scope at a distant object like the top of a telephone pole. GET the top in the center of the eyepiece in the main scope.

Then without moving the scope-- adjust the cross-hairs in the small finder scope so they line up on the same object.

Feb 09, 2011 | Bushnell Deep Space 78-9003 (525 x 76mm)...

1 Answer

Just had a konusmotor 500 telescope and have built it to the instructions, but nothing on how to use. only a beginner but how do you increase the size of the object you are looking at,eg the moon looks the...


Are you viewing the moon through the small finder scope on top of the main tube? That is only used for aiming the scope, and has very little magnification. The moon should fill the field of view on even the lowest magnification on the main scope.

A reflector type scope has the eyepiece mount on the side of the main tube, near the top end, pointing into the side of the scope. This mount should have an eyepiece placed in it- use the one with the biggest number to start with (that will have the least magnification). Do NOT use the Barlow lens if one came with the scope. You look into the side of the tube with this type of scope, not along it.

New telescope users are taken by surprise at the difficulty of just pointing the telescope in the right direction to see anything. The field of view is quite limited, especially if you are using a high power eyepiece. The higher the power of eyepiece on a telescope, the dimmer the image, the more difficult to aim it at any chosen object, and the more difficult to focus. When the scope is not focussed, even if there are stars in the field of view, they will only be faint blurs.

The finder scope is meant to help you get the main scope lined up on the object you want to view, but it won't be any use in pointing the telescope until you adjust it to precisely line up with the main scope. Telescope manuals recommend that you do this in daylight, by pointing the scope at an object on the horizon and adjusting the finder to match (never point a telescope toward the Sun!). Once you have a tree or mountain peak in the center of the main scope's image, you can then adjust the screws around the finder scope to get the crosshairs (or red dot) centered on the same object. It is very difficult to do this job in the dark, especially as objects in the sky are constantly on the move.

You will find that there is a very wide range of movement in the focus mechanism, because different eyepieces focus at different points, but the actual focus range for any eyepiece will be a small part of the overall range afforded by the focusing mount. It is much easier to familiarise yourself with this in daylight.

At this point you will learn that astronomical telescopes usually show an upside down image. There is a good reason for this- erecting the image needs more bits of glass in the light path, which reduces the amount of light and increases aberrations. Even if this is only slight, astronomers prefer to avoid it, and they don't really care which way up the Moon or Jupiter appear. It is possible to fit an erecting prism or eyepiece to most astronomical telescopes, and some of them come with one, but one wouldn't bother to do this with the small finder scope.

Once you have done the above, you can try the scope at night, on an easy to find bright object like the Moon. Looking at random stars will probably be disappointing, as they don't look different under magnification. You will have to find planets, star clusters or nebula to see anything interesting. You will also find the the object you are looking at swims out of the viewing field, and you must continually move the scope to follow it. This will be more pronounced at higher magnifications. This scope has a motor to track the scope and keep objects in view, but you will have to get the scope set up for that for it to work correctly. Again, use the least powerful eyepiece to start. Small scopes are often advertised as having unrealistic powers (300, 500) which can never be practically achieved. You just get dim blurs.

There is an excellent website for beginner telescope users at THIS LINK

Jan 22, 2011 | Konusmotor 500 (230 x 114mm) Telescope

1 Answer

We were given an EDU Science telescope and tripod (no case). We don't know if it is working or if it has all the parts. The telescope looks like the link below, but the smaller tube attachment (see the...


The bit you are missing is the finder scope, which is a small low-power scope that is used to line up the main scope on an object that you want to view. Without this it can be quite hard to get the scope pointed at anything, as the field of view is quite limited, and more so at higher powers.

It can be quite expensive to buy useful eyepieces for a scope, but they are readily available if the eyepiece mount tube is 1.25 inch inside diameter. The eyepieces that originally came with this scope probably were not very good, and in fact this scope is not up to much. It is rather small for a reflector at three inches diameter. You certainly won't be able to use it at the advertised 600 power, or even at 200. It has neither the resolution nor the light gathering ability with that small an aperture.

I would recommend that you explore the web page at THIS LINK for a lot of good advice about first telescopes, before you spend any money.

Jan 05, 2011 | Edu-Science Optics

1 Answer

See nothing through my brand new telescope


I suggest that you try the telescope first in daylight (NOT pointed at or near the Sun), using the least powerful eyepiece (the one with the largest number). Try it on objects on the horizon, remembering that they will appear upside down. This is a good time to get the accessory viewfinder scope lined up with the main scope, too. It is unlikely that the finder scope will be much use in pointing the telescope until you adjust it to precisely line up with the main scope.

When you have become familiar with the low power eyepiece, try a higher power, which will focus at a different point (and be harder to find objects with). Then try it out at night, on a bright, easily found object like the moon.

The higher the power of eyepiece on a telescope, the dimmer the image, the more difficult to aim it at any chosen object, and the more difficult to focus. Do not use the Barlow lens if one came with the scope. There is a very wide range of movement in the focus mechanism, because different eyepieces focus at different points, but the actual focus range for any eyepiece will be a small part of the overall range afforded by the focusing mount. You will also find the the object you are looking at swims out of the viewing field, and you must continually move the scope to follow it. This will be more pronounced at higher magnifications.

Jan 02, 2011 | Bushnell 3" Reflector Telescope w/Talking...

1 Answer

I was given a Tasco 675 power reflector telescope model #40-114675, but didn't get an instruction book or dvd. I was able to find a star in the finder scope but couldn't see it through the eyepiece. it...


You must first ALIGN the finderscope with the main tube. Locate a bright object with the main telescope. Get it in the eyepiece- then without moving the telescope, align the finder scope on the same object.

Now you can use the finder like a gun site to center targets on the crosshairs. By the way the Fixya picture in your question always makes me laugh- the telescope in the picture is mounted BACKWARDS and pointed toward the ground!

Jun 01, 2010 | Tasco Luminova 40114675 (675 x 114mm)...

1 Answer

150-1400 Newtonian telescope Set the sight scope eye piece on the moon and looked in the pl 25mm lens in the focusing tube and no image? Can anyone help Philip moondogs2@myway.com


You must align the finder scope with the main telescope tube--

During the daytime look at something far away in the main scope-- without moving the scope center the cross hairs on the finder scope.

Good luck

May 04, 2009 | Optics

1 Answer

Replace Eyepiece on Saturn F-900 Model 60EQ


You need an eyepiece This scope uses .965in eyepieces. you can find them on Ebay. Maximum magnification is 100x NOT 420x. These scopes have inferior optics and terrible mounts. Don't spend much on this scope. Buy a 20mm (35x magnification) http://www.ebay.com/itm/Astro-Optics-20mm-965-Telescope-Eyepiece-NEW-/230688144635?pt=LH_DefaultDomain_0&hash=item35b615bcfb or a 15mm (45x magnification) http://www.ebay.com/itm/Astro-Optics-20mm-965-Telescope-Eyepiece-NEW-/230688144635?pt=LH_DefaultDomain_0&hash=item35b615bcfb on Ebay If you are interested in astronomy, you need to spend some money on a good scope. Check out Orion for a great tabletop dob for $100 http://www.telescope.com/Telescopes/Dobsonian-Telescopes/Mini-Dobsonians/Orion-SkyScanner-100mm-TableTop-Reflector-Telescope/pc/1/c/12/sc/28/p/9541.uts

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