Question about National Geographic 76AZ (525 x 76mm) Telescope

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Can you tell me where i can buy an image erector, thanks

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Yes, but it will probably cost almost as much as you paid for the scope:

here is one:
http://www.amazon.com/Celestron-Erect-Refractor-Schmidt-Cassegrain/dp/B0000665V4/ref=sr_1_2?ie=UTF8&s=electronics&qid=1283197941&sr=8-2

All astronomical telescopes show upside down images, it's normal. The erecting diagonal is only used for terrestrial day time viewing, of land objects.

Posted on Aug 30, 2010

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1 Answer

Which image erector eyepiece?


Most small 'consumer grade' or 'department store' telescopes use 0.9 inch diameter eyepieces. Better quality ones use 1.25 or 2.0 inch. Any image erector which will fit in the appropriate size focuser will probably be fine. Just select the image erector based on the eyepiece barrel diameter (0.9", 1.25" or 2.0").

Apr 05, 2014 | Bushnell NorthStar 78-7880 (190 x 78.74mm)...

1 Answer

We need directions booklet for erector set #7530. Thank you


Hi faylosey46,

The building instruction for your Erector Set Model 7530 is not available online. However, you can still get the instruction for this when you contact the manufacturer directly through this form. It will be sent to you through email.

Hope this helps.

Thank you for using FixYa.

Jul 21, 2011 | Erector Set Model 7530 Makes 30 Models 6v...

1 Answer

My grandson lost the directions for the erector #0262 and we would love to build it now - can you help?


Here you go, I hope this helps:

http://www.erector-sets.com/wp-content/themes/meccano/buildinginstructions/760262w.pdf

For future reference all of their instruction manuals can be found through their customer service page. Just type in the model name or number:

http://www.erector-sets.com/customer-services/instructions-manuals/

May 08, 2011 | Erector Toys

1 Answer

Where do i find a image erector and how and where does it go?


This is an eyepiece attachment that goes in between eyepiece and telescope. I found only two items on ebay.com (different size/fit), searching on "eyepiece erector".

Nov 22, 2010 | Fieldvision 114mm Reflector (114 x 114mm)...

1 Answer

Hey where can I buy Erector set now....I live in Belieze and can't find them anywhere???


As far as I know they have not made erector sets since the 1980s. You might find them at antique or collector toy shops. There is alway ebay if you want to look online.

Jun 30, 2010 | Erector 30 Model Construction Set

1 Answer

Science Tech 262 telescope image problems.


TOO much magnification! Hate to tell you but the MAXIMUM magnification for any telescope (all things being perfect-- like optics, and sky conditions) is 50 times aperture. So max for you is about 125 power.

Normally only about 30-40 times aperture is possible. So about 90 power is your normal max magnification.

We see this every Christmas. People buy scopes that say 275 power or 500 power on the outside of the box. It's a LIE!

Even in my 8 inch LX90 I rarely go above 200 power, and only when the sky is clear and very stable. Use the eyepiece with the largest number written on it which will be your lowest magnification.

Dec 27, 2009 | Optics

1 Answer

Image upside down


Hi, this is a common "problem" for astronomical telescopes. Same with my Meade 3" refractor and spotter. It is actually a design 'feature' not broken.

The issue is that most astronomical telescopes naturally show images upside down, or some combination of upside down and left-right.
(Astronomers usually don't care, because space has no up or down.)
It is just the way optics work when lenses or mirrors bounce and bend light. (And since the professional astronomer wants the most light and most direct image, they usually don't want extra devices just to make it right-side up.)

Reason that binoculars don't do that , is they employ special internal prisms to get the image back right-side up.

Easiest solution for astronomical telescope is to buy what is called a "star-diagonal" or "image-erector prism". These will usually make the image look normal for us earth-based folks.

I do not know what exact type your Meade 227 telescope is, but the spotter scope is most likely a simple refractor. So it MAY be possible to install a star diagonal onto it. Or might not. Depends on the exact spotter scope design.
Another option may be able to buy a replacement spotter scope that is designed for correcting image orientation.

Aug 10, 2009 | Meade DS-2114 ATS (325 x 114mm) Telescope

2 Answers

THINGS UPSIDEDOWN


It's the nature of the way telescopes work that means all images are seen inverted. For astronomical use, this isn't really a problem.

You can buy an "image erector lens" to correct the image and see it rightside-up though.

Dec 29, 2008 | National Geographic 76AZ (525 x 76mm)...

1 Answer

Focus with erector eyepiece on


Some eyepieces cannot come to focus in certain telescopes-- try a different eyepiece.

Sep 02, 2007 | Bushnell Voyager 78-9565 (120 x 60mm)...

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