Question about Bushnell Deep Space 78-9512 (120 x 60mm) Telescope

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No they did not give me the right stuff they gave me 20mm but it was supposed to be a 60mm

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Why would you need a 60mm eyepiece? I doubt these can even be purchased since I have never seen anything over 50mm -- this is a VERY low power eyepiece! The bigger the number the lower the magnification.

The normal ones would be 20mm-25mm and a 10mm-12mm.

This company sells eyepieces-- they come in 3 sizes, .965, 1.25, and 2 inch. Measure the hole in the focuser and buy the correct size:

http://www.agenaastro.com/

Posted on Apr 04, 2011

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1 Answer

What foclelength of lenses are required to construct a telescope


Eyepieces determine the magnification of the scope-- first determine the focal length of the scope. It should be in the manual or written somewhere on the scope -- let's assume it is 1000mm.

So a 10mm eyepiece will give you 100 power

1000 divided by 10

a 20mm eyepiece will give you 50 power magnification

1000 divided by 20


www.telescopeman.org

Sep 23, 2011 | Meade Polaris 285 (225 x 60mm) Telescope

1 Answer

Someone just gave me a meade polaris 60AZ-M: 2.4"


Here are all of Meade's manauals-
http://www.meade.com/manuals/

Contact Meade customer service first here:
http://www.meade.com/support/index.html

If they cannot help you then you may find the proper bolt at a well stocked hardware store.

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I have vertical lines on the entire right side of the screen on my Olevia 242-S11. I've replaced the t-conn board three times, the first and third gave me a black screen, the second gave me less...


most of the stuff from jimmy's its second hand ( not good working or working maybe) first and the last i suppose you got a problem with the power supply on the T con on the second i suppose you have a problem with the big chip in the middle the scalier :D

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Just looking at the astro gazer 70 and astro nova 100 as first telescope for my 6 yr old. both have a 6 x 25mm finderscopes and the only difference i see is the 100 has four eyepieces (4.5mm, 9mm, 12.5mm,...


DO NOT buy an Edu Science telescope. We receive many complains on these scopes.

Try this web site for a nice small Dobsonian style telescope, like this one.

http://www.telescope.com/control/telescopes/dobsonian-telescopes/orion-starblast-4*5-astro-reflector-telescope

Dec 07, 2010 | Edu-Science (10166) Telescope

1 Answer

I can't see anything out of the large scope


Use the 20mm to view an object (building, tree etc.) far away during the daytime. Align the finderscope to the object.
To view the moon, leave the scope out to equalize the temperature for at least 1/2 hour. Use the 20mm and no barlow. Point the scope towards the moon by sighting along the barrel of the scope, then use the finder to zero in on the moon. You may then switch to the 4mm eyepiece. for a more magnified view of the moon. You will have to keep moving the telescope because of the earth's rotation. The higher the magnification, the more you will have to adjust the scope. Because of the cheap finderscope, finding the planets will be difficult. Best to always sight down the length of the scope to get you close. The planets will be small and indistinct.
This is not a astronomical telescope! May be used for views of the moon but the cheap mount is not suitable for other planets. Max power would be 225x NOT 420x as advertised. The erecting prism is for terrestrial use only.
Nothing discourages an amateur astronomer more than a toy store telescope. My advise would be to use this scope for nature watching and go buy a good telescope (Meade, Celestron, Orion etc.). Even Those 60mm refractors are superior to this! A descent scope would cost a minimum of $200

Nov 03, 2010 | Bushnell Deep Space 78-9512 (120 x 60mm)...

1 Answer

I went and bought one of these for $25 but the 60mm eyepeice was not is there. I am wondering what other eyepeices can be used for this telescope so I can get greater manification since all i have is the...


Well that's about all it is worth! You bought a toy telescope of about 60mm not much larger than a pair of 10x50mm binoculars which would have been better for astronomy.

You can buy .965 eyepieces on Ebay at Telescope Warehouse. They are almost as much as you paid for the telescope. This is a 2inch scope so your maximum possible magnification in perfect conditions and with perfect optics will be about 100 power. (50 times aperture).

Read my TIPS on my profile page. Next time buy one of these in at least a 6 inch or 8 inch size.
http://www.telescope.com/control/dobsonians/classic-dobsonian-telescopes

Feb 18, 2010 | Bushnell Deep Space 78-9512 (120 x 60mm)...

1 Answer

Trying to change out the fuel line going to the fuel filter. auto store claims they gave me the correct one. was not the right stuff. any suggestions??


Try a different store and see if they look up the same one. Quite often their computer gives them the wrong number, and they give you the wrong part. Nobody to blame but the guy who enters the numbers.

Sep 24, 2009 | 1998 Pontiac Sunfire

1 Answer

4.5 inch reflector telescope --can't see anything


Try pointing it at the moon first-- with the 20mm and practice focusing it. The moon is up just after dark right now.

Dec 29, 2008 | Bushnell Voyager 78-9470 (470 x 60mm)...

1 Answer

Need a instruction booklet for model #289m


http://www.meade.com/support/index.html
right click then slide over the link above..then click copy...then go to you address bar and then paste it in and viola! Hope this helps.

Dec 02, 2008 | Meade Polaris 285 (225 x 60mm) Telescope

1 Answer

Replace Eyepiece on Saturn F-900 Model 60EQ


You need an eyepiece This scope uses .965in eyepieces. you can find them on Ebay. Maximum magnification is 100x NOT 420x. These scopes have inferior optics and terrible mounts. Don't spend much on this scope. Buy a 20mm (35x magnification) http://www.ebay.com/itm/Astro-Optics-20mm-965-Telescope-Eyepiece-NEW-/230688144635?pt=LH_DefaultDomain_0&hash=item35b615bcfb or a 15mm (45x magnification) http://www.ebay.com/itm/Astro-Optics-20mm-965-Telescope-Eyepiece-NEW-/230688144635?pt=LH_DefaultDomain_0&hash=item35b615bcfb on Ebay If you are interested in astronomy, you need to spend some money on a good scope. Check out Orion for a great tabletop dob for $100 http://www.telescope.com/Telescopes/Dobsonian-Telescopes/Mini-Dobsonians/Orion-SkyScanner-100mm-TableTop-Reflector-Telescope/pc/1/c/12/sc/28/p/9541.uts

Oct 25, 2007 | Bushnell Deep Space 78-9512 (120 x 60mm)...

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