Question about Meade DS-2114 ATS (325 x 114mm) Telescope

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Just bought a starnavigator 114. Purchased a Barlow lens to use with my 26mm lens, but with the barlow I can't see anything. Do I need to make changes in the lens config. in the Autostar?

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The barlow may be too much magnification for that aperture telescope. The higher the magnification the SMALLER the sweet spot is in focus.

Turn the knob slower and also practice focusing during the day time on a distant object.

Posted on Mar 31, 2011

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1 Answer

How do you use the Barlow lens?


You stick in the same hole you look in after removing what ever was in there. Put the Barlow in there and put what ever was in there into the Barlow. Now whatever you look at will be 2 or 3 times bigger. Keep the MM of the lens you stick into the Barlow on the high side... 40-70 mm or higher... You can't break anything just try different lens.

Aug 31, 2014 | Bushnell Optics

1 Answer

When I use a Barlow lens do I insert it before focusing on an object through the eyepiece or do I insert the lens after I've focused on an object (eg: Jupiter)


You will have to refocus after inserting the barlow. The barlow will change the focal point of the eyepiece

Apr 06, 2013 | Optics

1 Answer

I have a Star Navigator114 scope. It was working real well one night and the next night I used it could not see anything. My 9 mm lens would bring things in fairley close. Does not work anymore. Could...


Can you see things in the distance during the day time? If you can nothing is wrong.

Do not use the barlow-- it is too much magnification for that size scope. Start by using the eyepiece with the largest number written on it-- center up the moon (which would make a good first target) and then exchange eyepieces. You should be able to use the 2 x barlow with the OTHER eyepiece if it is some thing like a 25mm. The barlow will make it about a 13mm.

When you use the barlow with the 9mm it makes it a 4.5mm which is too much magnification.

Sep 03, 2011 | Meade Optics

1 Answer

Vivitar 76mm reflector teles.76700 barlow lens 3x eyepiece is to small for it.is there a reducer for the barlow ?kit came with two 3x barlow.same size


No the barlow increases the magnification by 3 TIMES for any eyepiece --
this will be too much for that small 76mm telescope.

Magnification is the least important quality of a telescope. Aperture and quality ioptics are much more important. I usually never use a barlow -- just the straight eyepieces in various mm sizes.

Read my tips on my profile page.

Feb 03, 2011 | Vivitar (1607225) Telescope

1 Answer

What is the barlow lens for and how do i use it


It multiplies the normal magnification of the eyepiece. They come in 2x, 3x, 4x, and 5x powers.

Normally in a very small telescope like your scope, they are completely useless! They generate too much magnification for that small aperture.

You would normally put the barlow into the telescope, and then put the eyepiece into the barlow lens.

Jun 15, 2010 | Edu-Science (10166) Telescope

1 Answer

I have a 3x Barlow telescope that is completely disassembled and I need instructions on how to reassemble thee entire telescope.


There is no such thing as a 3x barlow telescope. A barlow is a small accessory that multiplies the magnification of any eyepiece.

This is a barlow-
http://www.agenaastro.com/GSO-1-25-2x-Barlow-Lens-p/obar-gs-gs2bl.htm

May 19, 2010 | Optics

1 Answer

When i bought my tasco 46-114500 i did not receive my 250x lens can you help me dennis at 419-349-1983


You mean your 2x or 3x barlow. These can be purchased from many on-line retailers:

Here are two:

http://www.telescope.com/control/category/~category_id=barlows

http://www.agenaastro.com/Barlow-Lens-1-25-inch-s/66.htm

Nov 07, 2009 | Tasco Galaxsee 46114500 (500 x 114mm)...

1 Answer

Rotate image so that it is not upside down


You will never be able to use the 3X barlow which TRIPLES the magnification of any eyepiece-- it's just too much for such a small scope. All astronomical telescopes have upside down images--- there is no up or down in space.

Jun 14, 2009 | Meade 114EQDH4 (36 x 114mm) Telescope

1 Answer

I dont know how to use my barlow lens


I use a barlow lens quite a bit with my telescope. It is usually inserted before the diagonal if you use one or before the eyepiece if you don't. The barlow lens for your telescope will double the power of the eyepiece used.

However, despite what the manufacturer claims for your telescope things will look quite poorly if you try to view at 180 power. Generally you'll get the best images by using 50x for each inch of your objective lens. For example, your telescope has a 50mm lens. That's roughly 2 inches. 2 inches times 50x gives you a maximum useful power of 100x. Depending on the viewing conditions you may be able to exceed this or not even reach it. Things will look blurry and dim when you try to use too much power.

Your power or magnification is calculated by dividing your telescope focal length which is 360 mm by the eyepiece focal length. You have two eyepieces with focal lengths of 4mm and 20mm. If we divide 360mm by 20mm we get 18 power. If you add a barlow to that you get 36 power. Dividing 360mm by 4mm (no barlow) we get 90 power. That would be your maximum useful power.

Therefore, you should be able to used the 20mm eyepiece with or without the barlow but the 4mm should only be used without the barlow.

I hope all of the math wasn't confusing.

-jodair

Feb 12, 2009 | Edu-Science (10166) Telescope

1 Answer

What lens do i insert into scope to view the moon


The moon is big so use the 25mm. The Barlow will have a multiplication marking on it 2x 3x etc. A 2x Barlow lens will effectively double the power of the eyepiece you are using. Do not use the erecting eyepiece for anything other than land viewing. Erecting eyepieces generally reduce the amount of light reaching your eye and thus reduce brightness of the faint objects in the sky.
So basically just place the 25 mm lens in the focuser and point the scope at the moon and you will be amazed at what you can see and how bright it is.

Dec 30, 2007 | Tasco 350x50mm Refractor Novice Telescopes

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