Question about RTO My First Lab Duo Scope Microscope In Box Mfl-06

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Fix my scope eyepiece

Help...my son unscrewed the eyepieces on his new Duo Scope and I can't figure out how to put it back together again!

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Science tech 262 manual


Can't find a manual. This is a 76mm reflector on a Alt/AZ mount.
1. During the day, put in the 20mm eyepiece and point to a object around 100 yards away.
2. Focus on the object
3. Align the finder to the object in the eyepiece
4, Set up at night, give the scope time to reach outside temperature
5. Point scope with finder at the moon. (More than half full will be too bright)
6 Use the lowest power eyepiece (highest number) and focus on the moon.
7. You may now use higher power eyepieces to observe.
8. Pointing the scope usually involves loosing 2 knobs to move the scope in up/down and side to side motion. There may be slow motion controls to adjust the scope as objects in the sky move.

Nov 27, 2011 | Optics

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I'v put this telescope together, but have no idea how to use it, i look through the image finder i can see the moon its clear but tiny, i'v put all 3 eyepieces on. i can see the moon better...


Put the eyepiece with the largest number written on it into the focuser. Practice focusing on a distant object during the day time--

Read these web sites:
http://www.universetoday.com/19222/how-to-use-a-telescope/

http://www.astromax.org/faq/aa01faq5.htm

Jul 14, 2011 | Optics

1 Answer

I need the eyepiece for the vivitar refractor telescope ot accidently was broking when I shipped to the Bahamas


You don't say whether this is an astronomical telescope or a terrestrial one (spotting scope). However, I have a Vivitar scope which was sold as an astronomical scope, but is actually a spotting scope, although it uses astronomical style eyepieces, so...

I am not sure that it is the eyepiece you want, either. It is hard to break an eyepiece, but much easier to break the eyepiece mount or diagonal mirror fitting.

Most astronomical telescopes use a standard fitting eyepiece with a 1.25 inch outside diameter barrel. You can measure the mount where the eyepiece goes to make sure that yours is this size, then search on eBay or Amazon for "1.25 eyepiece" and you will find many available. It doesn't have to be made by Vivitar, any make will fit.

The other variable will be the focal length of the eyepiece, which is what determines it's power. The power of the scope will be the focal length of the main objective divided by the focal length of the eyepiece, so a 9mm eyepiece will give a higher magnification (and be dimmer and harder to focus and find objects) than a 20mm eyepiece. It is usual to have two or three different focal length eyepieces for viewing different objects.

Jan 23, 2011 | Vivitar (1607225) Telescope

1 Answer

The magnification adjustment ring on my Gamo Whisper worked fine at first, then was stuck between 3X and 5X. Now it is free again but the scope is not focused on the 3X and 9X settings, but is clear on 5X...


I'm not familiar with the scope, is it an air rifle scope? One stroke type? If not, the backwards recoil of the air rifle is tough on a normal scope, they aren't made for that type of abuse. They work fine with a normal recoil. That is why they started making air rifle scopes. I'm sure that the internals of your scope are damaged somewhat, you can take off the eyepiece no problem, you might find something in there, loose screw, missing screw, you never know, don't get too carried away with the dis-assembly, you'll never get it back together. It sounds like the magnification ring is messing with the focus of the eyepiece. Might just need some oil. Hope this helps.

Feb 28, 2010 | Caliber Gamo USA Hunter Elite .177 Air...

1 Answer

Need a manual or directions to put telescope together


The eyepieces have numbers written on them-- the bigger the number the LOWER the magnification. Start with the eyepiece with the BIGGEST number-- practice focusing the scope during the daytime on a distant object..,..... once you do.. switch eyepieces .... and see how much closer everything looks.

Try for the moon as your first target at night--- you can download a free star chart at www.skymaps.com

Apr 03, 2009 | Optics

2 Answers

Trying to identify older tasco telescope and put it together


There are only two types of telescopes --- REFRACTORS, and REFLECTORS-

The refractor has a lens on the front of the tube and you insert different eyepieces in the back-- the larger the number written on the eyepiece the LOWER the magnification-- (DO NOT USE THE 2x or 3x barlow which you may have!-- this creates too much power for this small telescope!-- put it away and never use it!)

A reflector has a main mirror on the bottom of the tube, and a small secondary mirror under the eyepiece hole (focuser end) - front end-- put the lowest power eyepiece into the focuser.

Now with either type telescope go out side during the day and practice focusing on a distant object-- turn the knob SLOWLY. At night the moon should be the first target you try.

If you received what appears to be a smaller telescope -- that is the finder scope-- attach it to the top of the tube on the main telescope. Again during the day line up the small finder scope with the main scope-- look at a distant telephone pole (the very top-- and center this in the main telescope. Without moving the main scope use the finder scopes "screws" to adjust the cross hairs so they are pointing exactly where the main scope is pointed. Now you can use the small finder scope to point the telescope in the exact direction--

The moon should be your first night time target.

Good luck--

Mar 17, 2009 | Tasco Astronomical 302675 Telescope

1 Answer

I have a WO IBIS 80 APO Spotting Scope. How do use it with other 1 1/4" eyepieces? The packaged zoom eyepiece seems to have a threaded attachment to the scope.


sounds like it was designed to use only the eyepiece that came with it. here is an idea...mount the scope on a tripod with no eyepiece in it...now take an 1 1/4" eyepice and place against the scope where you would put the eyepiece ..try to focus..if you cant, then slowly bring the eyepiece away from the scope till you see a sharp image..im sure a machine shop can make a sleeve to screw into your scope and hold 1 1/4" at that point.any questions i can answer call me larry@reichinstruments.com 5088331232

Nov 29, 2008 | Optics

1 Answer

What lens do i insert into scope to view the moon


The moon is big so use the 25mm. The Barlow will have a multiplication marking on it 2x 3x etc. A 2x Barlow lens will effectively double the power of the eyepiece you are using. Do not use the erecting eyepiece for anything other than land viewing. Erecting eyepieces generally reduce the amount of light reaching your eye and thus reduce brightness of the faint objects in the sky.
So basically just place the 25 mm lens in the focuser and point the scope at the moon and you will be amazed at what you can see and how bright it is.

Dec 30, 2007 | Tasco 350x50mm Refractor Novice Telescopes

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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