Guide :Optics : (1607225) Telescope

Cannot see an image through the lens

I got this telescope for my 6yr old niece but for some strange reason, I'm unable to view any image through the lens. I can see an image through the main focal tube as such but when I try viewing it through the lens, nothing really shows up. What am I doing wrong?

Research, Knowledge and Information :


microscopes Flashcards | Quizlet


Start studying microscopes. ... When you look through the ocular lenses, you see this image of the ... the observer does NOT look directly at an image through a lens.
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Anatomy and physiology "The eye and Vision" review. ... The lens divides the eye into two segments, ... We cannot see images formed on the optic disc.
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Optics For Kids - The Optical Society: Exploring the Science ...


The strange thing about a virtual image, however, is that we can see it! ... the virtual image is not a true image, in that it cannot be ... passes through the lens ...
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Practical Physics » Optics » Introduction to rays and images » Image formation with a lens. ... You see that image by ... through. You cannot catch that image on ...
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Through-the-lens metering - Wikipedia


Through-the-lens metering is most often ... allows the viewfinder to see directly through the lens. ... will be introduced as image sensor ...
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On my 50D, sometimes I look through the viewfinder and it looks like I haven't removed the lens cap; at other times, it works normally; once in a while, I can see ...
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Israeli scientists have developed a technology that can see through ... and enhances the image, which a lens ... of trying to see clearly through ...
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Physics 41 Chapter 36 HW Solutions Serway 7th Edition


A nearsighted person cannot see objects ... for the second pass through the lens, ... Locate the final image, formed by light that has gone through the lens ...
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Imaging with a Lens - Mount Holyoke College


Imaging with a Lens. ... but they are enough to see where the image is, ... Observe carefully how the colors of the border change as the image passes through the ...
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Suggested Questions And Answer :


Cannot see an image through the lens


I bought one of these telescopes, and had trouble at first, but finally got some decent results. If you dont have any experience with telescopes, I suggest trying it first in daytime, since daytime objects are much better for getting experience. Also, start with the lowest power eyepiece, the 12mm 50x, the one with the largest lens. Start by looking towards something pretty big, like a car or a house, and it needs to be some distance away to even have a chance to get a focus. If your target is closer than about 1/4 mile, you should add the right angle eyepiece attachment to allow you to focus in on closer objects.When you are finally set up with the low power eyepiece, and have a good big target in the daytime, start looking thru the telescope while turning the knob thru the entire range. At some point of knob turning, you should see some image appear in the eyepiece..Turn the knob slowly to focus it clearly.And this is for the shaky tripod. If you can hang a book under the middle of the tripod, the added weight will help stabilize the telescope, and you should be able to see a little better, without so much motion at the slightest touch.After you look at the first car or house, you can start to see how careful you have to be to use the telescope, and you can start to look at other objects. When you move to the higher power 100x eyepiece, it will be even more critical in getting it both aimed and focused. If its off by just a few degrees, you wont see what you are looking for.When you start nightime viewing, start with the largest object in the sky, the moon. Its the same process as daytime, except the eyepiece mechanism will have to be adjusted a little closer to the main body of the telescope.Viewing planets and stars will be the ultimate test. Stars and planets are harder to see, since they are small, and hard to see unless they are in focus. When you can see those views, you have passed the telescope test. Its a matter of careful aim, and having the telescope focus set close to the point where you can see objects that are VERY FAR AWAY. If you are able to focus on the moon, you will be fairly close to being able to focus on the planets. The hardest part is actually getting the planet in the view of the telescope, in other words, aiming it.The last item that can really mess up the view is a fogged up lens. Usually this happens in the summer when the scope has been in the air-conditioned room, and then it fogs up when taken outside. The solution for this is to let the telescope sit outside for 20 minutes, so the fogged lenses can clear. By the way, the same fogging may happen when you bring the telescope inside during the winter.I hope this helps you eventually get a clear view of some amazing views in the sky. Your final exam is to take a look at the moon, the rings of Saturn, and the moons of Jupiter, some time in the near future. Have Fun!
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Bushnell 700x76 I recieved this telescope as a Christmas gift 700x76 I cannot get a clear image thru it,I've used the 12.5mm lens the highest power lens it came with ,still can't see anything.What am I doing wrong?Please Help


Just got a 78-8831 and set it up according to instructions. After inserting lens into eyepiece, I can't see anything at all. Dont worry, I've removed the front cap from the the main telescope.Something leads to believe I'm either missing something real fundamental or my telescope is broken. Please help
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I am wondering how good you should be able to see images through a bushnell skytour 78-9960 telescope i can see the moon good but all the planets are really small and cant tell them from stars really. i have a 1.5x eyepiece 12.5mm lens 8mm lens and 4mm lens. Am i doing something wrong or is it just my telescope isn't powerful enough to see objects with any detail for like saturn or jupiter?


700mm FL with an aperture of 60mm gives you a focal ratio of 11.6, so you shouldn't even try using any EP with a FL shorter than 11.6mm, which mean only the 12.5mm would be of any use. Unless you can find a pitch black area with 0 light pollution and excellent seeing, then you could perhaps still get away with the 8mm. So with the 12.5mm, you're talking about a 56X magnification, so it would be rather hard seeing any details on the planets. You should be able to see Jupiter's moons (tiny dots) and Saturn's rings though.
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Cannot see anything.


In addition.... you can download the complete manual immediately here : http://www.astronomics.com/main/documents/bushnell/78-8890_northstar.pdf cheers
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Hello, I m using the 60700 Telescope but the image i see in lens is very blurred, i assembled my telescope as per Manuel instruction but still i see upside down image with blurred effects. I tried several time assembling but every time moon image appears blurred. Could you please guide me what i am making mistake.


All astronomical telescopes show upside down and or inverted images-- it's normal nothing is wrong. You are applying too much magnification. Do not use the 2x barlow-- and start practicing how to focus using only the eyepiece with the largest number written on it which is your LOWEST power.You can practice focusing during the daytime on a distant object like a telephone pole or a building.www.telescopeman.orgwww.telescopeman.infowww.telescopeman.us
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I will add more info regarding my problem: My Celestron nexstar 8se was working ok. On the Dec.24 I Ieft it for awhile in the open and it felt a fine rain. I dried up the telescopeand put it inside. A


I'm having the same problem with my Astromaster 114 EQ . I can see better than the scope , but it is clear when I focus on images about 35 40 away in the daylight. I am now ready to trash this thing. For I had a Meade many years ago and it was great ,but I gave it to a friend to use, but he broke it. Next time Meade.
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I am able to see with the 20m Lens but once i insert the 5mm Lens it looses focus and i cannot see anything, i tried adjusting the focus again with no success. The worst thing that even at day light i cannot focus the 5mm lens on any far object. Is this a problem with the lens or the focus adjuster?


That's because the 5 mm is too much magnification for your small telescope. Maximum magnification is a function of APERTURE. Which is how big is the front lens or the mirror.Your scope has about a 2 inch aperture, so the maximum posiible magnification is about 100 power (if it is like the one in the picture above)50 times aperture (2 inches)-- 100 powerIt will only achieve 50 times if the optics are perfect and the sky is very transparent and stable. Usually only 30-40 times is all you normally get.
Read More At : Deep Space 78-9512 (120 x 60mm) Telescope...

Problem with orion 6" dobsonian mount telescope


The small mirror is usually held on with double-sided foam tape. That tape us used, so the small mirror is not stressed by the metal fittings with temperature changes. Clean the residue from the holder and the mirror, and apply fresh double-sided mounting tape and carefully place the mirror so that the main mirror is viewed from the eyepiece position.
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Cannot see through the lens of a 565 bushnell telescope


Did you remove the lens cap. This is a simple refractor telescope. Put the eyepiece with the largest number written on it into the telescope. DO NOT use the 2x barlow if you have one.Practice focusing on a distant object during the day time. Read my TIPS on my profile page.
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Image through telescope is tiny!


Never heard of that brand of telescope. Next time buy one from one of these retailers:http://www.agenaastro.com/Telescope-s/1.htmhttp://www.optcorp.com/http://www.telescope.com/control/main/Try putting the eyepiece with the largest number written on it into the telescope. Then go outside during the daytime and practice focusing on a distant object.
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