Question about Barska Optics Barska AE10104 - 70076, 350x professional Telescope with Tripod&Carrying Case- Reflector Type Scope ...

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Image is upside down (inverted)

I have a Barska Telescope Model 114900 (i.e. 900114 type). Since we have set it up, the view of any distant objects on the ground (and in the sky) is upside down, i.e. the horizon is at the bottom of the lens view. As we want to use the telescope not just for planets & stars, but for distant objects, how do we get the view the right way up? Cliff Mason

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All astronomical telescopes show upside down images this is normal.

You can buy an "erecting prism" to use for terrestrial viewing from many on-line retailers here is one: This will flip the image so it is not upside down.

Posted on Jul 11, 2010


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Why when I look through my telescope it's upside down

The image in astronomical telescopes are naturally upside down. This can be corrected using an inverting eyepiece . The reason this is the case, is that normally when viewing astronomical objects it doesn't matter if the image is upside down, so to minimise the loss of light that is the more important issue, unnecessary optical surfaces are eliminated. Terrestrial telescopes do naturally have inverting eyepieces as people expect to see objects the right way up.
Getting and inverting eyepiece will be cheaper the changing telescopes! :) Your eyes see everything upside down too, but your brain turns the image the right way up. The image in cameras is also upside down at the image plane, but the electronics turn it the right way up for you.

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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.

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All astronomical telescopes have upside down images -- there is no up or down in outer space. This is probably a REFECTOR style telescope. The part with the small mirror is called a diagonal. Certain types of diagonals called "erecting diagonal" can be used to flip the image right side up for terrestrial viewing. You do not need them for star gazing.

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Dont see anything.

Take the telescope outside during the day time. Put the eyepiece with the largest number written on it into the focuser--- DO NOT USE the 2x barlow if you have one. Practice focusing the scope on a distant object.

Read my tips on my profile page.

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You are using an erecting diagonal mirror between eyepiece and the scope. This flips the image (normally inverted as you realise) upright, but does not correct the reversal from side to side. These are often supplied with astronomical scopes more for ease of looking through the scope without craning one's neck upwards, rather than for the purpose of erecting the image.

There are other types of erectors that will fully erect the image if it bothers you, but astronomical telescopes normally are used without concern for such conventions, as the erecting lenses or prisms absorb light and introduce aberrations or reflections. If you wish to use the telescope for terrestrial work, you would probably be better off with a "spotting scope" which will be fully corrected for image orientation.

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I just got my first telescope and the findeerscope views upside down. Is this normal and if not should I send it back or can I fix it

All astronomical telescopes show upside down images. It's normal.

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I just bought the Barska 80060 telescope and put it together but I cannot focus on anything. All I see is gray.

Put the eyepiece with the largest number written on it into the focuser. Make sure the lens cap is OFF.

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DO NOT USE the 2x barlow, put the eyepiece with the largest number written on it into the telescope. Practice focusing on a distant object during the daytime-- or on the moon at night.

Read this:

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Put the eyepiece with the largest number written on it into the telescope. Go outside during the day and practice focusing on a distant object.

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Seeing land upside down

This is not only perfectly normal, but for this type of telescope, imperative! Land (and everything else) seems upside down due to how the light is bounced between the mirrors. It can be kinde tricky to get used to, but it's the way all Newtonian reflectors (it's the type of scope you have, big mirror at the botom, smaller one that's at a 45 degree angle neer the top, and an eypece on the side of the tube) are.

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