Question about Tasco Luminova 40114675 (675 x 114mm) Telescope

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Eyepieces lost HiI lost the eyepieces and the moon filter, how can i get them on the internet, can not find them....mi email is or thanks

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Re: eyepieces lost

You did not mention your telescope make and model so:
1. measure eyepiece holder. Determine of you use .965in. or 1.25in. diameter eyepieces. If you use .965 eyepieces you are limited in choices. HANDSONOPTICS.COM carries nice Plossls. SURPLUSSHED.COM. sells .965 moon filters and cheaper eyepieces. If you have a 1.25 eyepiece holder, the skies the limit on eyepieces. Check Ebay plus other sites.
2. Determine the focal length of the eyepiece you want to use. As a rule, your scope can magnify 50x per inch of aperture although looking at just the moon, you can stretch that a bit. For example, a 80mm reflector (3.1 in). x 50 = 155x max. magnification (must be a perfectly clear night)
So now find the focal length of the scope (stamped/labeled somewhere) Typical refractor is 700mm. For maximum power (155x) it is: focal length of telescope/focal length of eyepiece = magnification. Or FL (scope)/ magification= FL eyepiece. 700/155= 4.5mm. This size will have terrible eye relief unless you spend $$$$$. Suggest a 10mm eyepiece which gives 70x power and a great view of the moon and planets

Posted on Oct 22, 2011

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What power eyepiece are you using? Use an intermediate power eyepiece like 20mm. This will give you a really nice view of the Moon. Too high a magnification eyepiece, will cause blur views.

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1. Download stellarium at (free) This will tell you where to find the planets.
2. Do not use the erect image eyepiece for astronomy, It is for terrestrial viewing only.
3. Buy a moon filter. They are inexpensive ($12 at Agena Astro and others)
4. Huygens (H20, H12.5) are VERY cheap eyepieces,They have narrow field of view and low contrast. Purchase a good plossl or better eyepiece, you will really see the difference.
5. The SR4 (symmetrical Ramsden) is another cheap eyepiece. Avoid eyepiece designs that were invented in the 1700s. See item 4 above.

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1. During the day, use the 17mm eyepiece on a object outside (telephone pole, water tower, etc) then align the finder to what you see in the scope.
2. Put in the 7.5mm eyepiece and fine align the red dot finder.
3. At night, point the finder at the moon (less than half moon or the image is too bright without a moon filter) Use the 17mm eyepiece.
4. Once you see the moon, switch to the 7.5mm lens and enjoy.
5. Download Stellarium or any free astronomy software and see what is in your sky tonight. Your scope should be able to see Jupiter and its moons easily.(Saturn, Mars and Venus when the time is right) Open clusters like Pleiades will be nice is this fast scope.
5. If stars are not sharp, you may need to collimate the scope. Look online for general instructions.

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1 Answer

Purchased a tasco 675 luminova telescope and the front lens was missing. Where can i get one from?

I assume you mean the eyepiece. This telescope uses 1.25 inch eyepieces. Maximum magnification is 400x on a perfect seeing night.
I would start with a 20mm plossl which would give you 33x. Enough to see the moon and Jupiter/Saturn. If you get interested, then buy more eyepieces and most important a moon (neutral density) filter.
telescope focal length (675)/ eyepiece focal length = magnification
Good places for eyepieces are Ebay, Astronomics, Smart Astronomy

Oct 16, 2010 | Tasco Luminova 40114675 (675 x 114mm)...

1 Answer

How do i install my moon filter

The moon filter screws on the barrel of the eyepiece.

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Need a manual for my daughters vivitar telescope.

If your telescope is like the picture you posted it is a refractor style telescope on an ALT AZ mount-- very simple to operate..... up down--- left right.

Use it during the daytime first--- put in the lowest magnification eyepiece-- that's the one with the LARGEST number on it; and try focusing on a distant object to learn how to do this.

Then align the small finder scope crosshairs with the object in the eyepiece. Your first nighttime object should be the moon.

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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.

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