Question about Tasco Luminova 40076420 (420 x 76mm) Telescope

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Jason Comet Chaser 335

My telescope will not focus - what is the problem? I can see the moon but not in focus. It's only been used one time before.. It moves up and down like it's supposed to, just nothing happens

Please help - thanks!

Deborah dparker10@bellsouth.net

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Have u tried using a moon filter if not get a moon filter and screw it on the lens then put the lens back in the telescope and try focus on the moon then. I think that might help you if not let me know

Posted on Mar 13, 2009

Your scope needs colimation

Posted on Mar 28, 2008

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4 Answers

How to focus on the moon


Raymond, Telescope aiming and focus instructions. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
How to Use Telescope
http://members.iinet.net.au/~champas/pdf/tips/how%20to%20use%20your%20telescope.pdf
Adjusting your telescope

Jul 21, 2016 | Telescopes

1 Answer

Where do I find a manual for a Jason Comet 480 telescope. I just picked one up at a yard sale with no manual?


Sorry no manuals for that imported telescope. However Tasco has all of their manuals on this web site:
http://www.tasco.com/pages/instruction-manuals/

Use one that is similar to your scope.

Jun 23, 2011 | Telescopes

1 Answer

Cant see any thing


Did you remove the lens cap? If the scope is like the picture in your question this is a REFLECTOR style telescope. It has a mirror in the bottom and a smaller secondary mirror under the focuser. The FOCUSER end is pointed UP. as in the picture above.

Can you focus on a distant object during the day time? Use the eyepiece with the largest number written on it and DO NOT USE the 2x barlow if you have one. Try focusing during the day time. If this works your telescope is OK. Then try the moon at night as your first target.

If you can see the moon up close all is OK.

Read my TIPS on my profile page.

Jun 18, 2010 | Celestron Advanced C10-NGT (600 x 254mm)...

1 Answer

Jason 313 telescope doesn't focus properly. Can


Put the eyepiece with the largest number written on it into the telescope. DO NOT use the 2x barlow if you have one. Go outside during the day time and practice focusing on a distant object.

The moon should be your first target.

Nov 01, 2009 | Telescopes

1 Answer

I am 9 can't see out of my galileo 700x60 telescope what do i need to do


there are 3 types of telescopes:
1)refractor, uses lenses
2)reflector, uses mirrors
3)catadioptric, uses both

try this and practice doing this during the day time, it's easier.

get your eyepiece, the one with the highest number on it (# mm); this is your lowest power eyepiece, always use this first (wider view and easier to see where you're pointing it), and place it in your telescope.

next, use the focusing knob to focus on a target (a faraway tree, lamp post, etc.). once you have it focused, and if you want to get a closer look, get the next highest number eyepiece and refocus on the target. this is how you change magnification.
if you have a barlow lens (2x or 3x) this will also change the magnification by 2x or 3x without having to buy other eyepieces, although you can still buy more.
put it together in this order:
eyepiece-->barlow lens-->telescope

use the star diagnal for land viewing.

if you have a reflector telescope,
the open part of the telescope tube next to the focuser points to your target. focus it the same as above.

oh, and sometimes, with refractors, you might have to use the
45 degree or 90 degree diagnal to focus the telescope.

and google how to use a telescope. there's nice observing tips :D

hope this helps :D

oh, and check out the moon at night. it's a very nice target.
best time to observe the moon is when it's not full.
you gotta check out the 'terminator' (area on the moon where the light and darkness is separated.


Aug 12, 2009 | Galileo 700 x 60 Refractor Telescope

1 Answer

Set up a Jason 307 Explorer Telescope?


Jason and Bushnell are the same company. Here is a list of the manuals. Find your telescope-
http://www.opticsplanet.net/bushnell-warranty.html

Look down the web page.

Aug 10, 2009 | Bushnell Telescopes

1 Answer

How do I focus on the moon. Model 1400150. I have been gifted this telescope. Tried to focus on moon. Dont know how. Took big cap off end. Looked throughscope on top of large cylinder. Tried to focus...


first, use the lowest power eyepiece, that's the one with the high number on it with 'mm' after the number.

for a refractor telescope (uses lenses), you might have to add a diagnal lens (either 45 degree or 90 degree, whichever one you have) to focus on an object.
attach it in this order:

low power eyepiece-->diagnal lens-->main telescope

for a reflector telescope (uses mirrors, a telescope with a big tube with a mirror at the bottom and a focusing knob on one side of the tube). the open part of the tube points to your target.

hope this helps :D




Aug 07, 2009 | Celestron Telescopes

1 Answer

Telescope will not focus on moon,stars etc. will focus on ground targets. i know there are 3 different optics and i know there use.are there up grades to make this new telescopes work? i e-mailed tasco of...


You won't get anything from TASCO - these are considered toy telescopes. Put the eyepiece with the LARGEST number written on it into the telescope. DO NOT use the 2X barlow it is useless in such a small telescope.

Your first target should be the moon -- practice focusing on the moon until you can do it easily.

Jul 06, 2009 | Telescopes

1 Answer

Instructions and value


Probably will not find a manual-- value ? Next to nothing. Jason telescopes are considered to be toy telescopes.

Apr 04, 2009 | Telescopes

1 Answer

Cannot see anything out of main telescope


Do NOT use the barlow lens-- put the lowest magnification eyepiece into the scope-- practice focusing on the moon -- turn the focus knob slowly in and out until you get a sharp image.

Telescopes only show an area of sky about 1 degree wide or LESS--- this is about the size of the TIP of your finger held at arms length................ your scope is best used at low magnification.

Dec 30, 2008 | Edu-Science (10166) Telescope

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