Guide :Optics : 350x50mm Refractor Novice Telescopes

What lens do i insert into scope to view the moon

I purchased a Tasco telescope recently,putting it together was the easy part,i just wanted to know what lens i put in the scope to view the moon?The telescope came with a HM25mm,H12.5,SR4mm eyepieces,and i already know the Erecting eyepiece is for horizontal viewing,and the Barlow lens i think is for making the eyepieces more "powerfull".I just don't know what to use and how to put them in the scope.Maybe if you had a diagram or something it would really help.Thank You

Research, Knowledge and Information :


How to See the Moon: Telescope Viewing Tips - Space.com


But to see the moon at its best, try a high magnification, at least 150x. The moon can tolerate high magnification better than any object in the sky.
Read More At : www.space.com...

Society for Popular Astronomy -Starting to Use Your Telescope


The field of view of the main telescope is very ... If the Moon is in the ... remove the eyepiece and look into the tube. You should see a bright circle of ...
Read More At : www.popastro.com...

Using a Barlow Lens – TelescopesPlus


Using a Barlow Lens. ... The barrel size is the diameter of the eyepiece tube that fits into the ... What’s happening with the Moon on September 27?Observers ...
Read More At : www.telescopesplus.com...

Shoot the Moon: How to Take Lunar Photos Through a Telescope


Authors Imelda Joson and Edwin Aguirre captured this cropped view of the full moon with a ... First, insert and ... moon that you'd like to share with Space.com ...
Read More At : www.space.com...

How Big a Scope do I Need? - Telescopes and Telescope ...


How Big a Scope do I Need? ... the Moon, planets, star ... the skies essentially have to be four times better with an 8" scope than they do with a 4" scope to see the ...
Read More At : www.astronomics.com...

fitting filters to eyepieces - Getting Started General Help ...


fitting filters to eyepieces. ... the shiny metal tube that inserts into the scope ... it might sound daft but some people use sunglasses to view the moon. if ...
Read More At : stargazerslounge.com...

Lens to eyepiece adapters - Turn your Lens into a Telescope ...


Lens to eyepiece adapters - Turn your Lens ... and turing it into an equally high quality spotting scope. ... where it's much easier to view objects in the ...
Read More At : www.bobatkins.com...

1.25" Moon Filter [item # 94119-A]


Behind every lens and mirror lie our ... wildlife with a Celestron spotting scope. View ... Moon Filter simply screws onto the insert barrel of most 1 ...
Read More At : www.celestron.com...

Your Complete Telescope Eyepiece Guide from Sky & Telescope


Use our telescope eyepiece guide to make the ... distance behind the rear lens and still see the whole field of view. ... into the telescope's focuser ...
Read More At : www.skyandtelescope.com...

Suggested Questions And 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.
Read More At : 350x50mm Refractor Novice Telescopes...

I can target moon or planet in view finder and see same using just the 45 degree mirror;but, when I put in lens the object of course is blurred.My question is...How do you focus???...I had a telescope previously and you had a knob to turn on lens to focus...Lens that came with scope had none and additional barlow 2x is same type lens I know to add...But can't figure out how to focus...Please help....David


The knob on the back of the tube is the focuser-- put in the eyepiece with the largest number written on it and try again.It's harder to focus at HIGH magnification the sweet spot is very tiny.Go here and download a manual:http://www.celestron.com/c3/downloads.php
Read More At : Advanced C8-SGT 11026 (480 x 203mm) Telescope...

HI, Just purchased a nextstar 8 and when I tried to view thru the main eye-piece, nothing. Even tried to look at the full moon, nothing again. Yes, all the lens caps are off but it seems like the focas knob is'nt doing anything. I started out with a meade 4" telescope and jumped at the chance to buy this bigger scope. It has the gps and 7x50 finder scope with red cross hairs. It came from Colorado so maybe it got knocked out of wack in shipping. Is there anything I can do or try here ? I'm handy around the house and would like to fix this myself, if it's not to hard. Thanks, Chris


Check the focus knob and make sure the small "set-screw" is tight and the knob is just not spinning around on the shaft. DID you turn the knob enough to focus? Sometimes it may take 10 - 20 full turns.Finally the focuser is attached to a "rod" inside the tube that moves the mirror back and forth to focus the scope. It could have come loose from the rod?Instructions for disassembly are here:http://www.celestron.com/c3/support3/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=2220and here:http://www.sciencecenter.net/hutech/misc/focuslk/index.htm this just shows how it works.
Read More At : NexStar 8i (600 x 203mm) Telescope...

Is inverted image normal


Most astronomical telescope show upside down images-- no problem as up or down do not exist in space!You can buy an "erecting" diagonal for terrestrial use.http://www.telescope.com/control/product/~category_id=diagonals/~pcategory=accessories/~product_id=08787
Read More At : Galaxsee 45-060675 Telescope...

The only object i tried so far is the moon. No matter which eyepiece I used viewing object was always blurry. With 25mm you can tell it is moon but much worst than with ***** eye. With 12.5mm or 4mm you would not even know it is the moon you are looking at. I am pretty sure i am doing something terribly wrong because it cannot be this bad. I just purchased 30-060402. Very frustrating.


This is a VERY small 50mm telescope, the same size as a pair of 10x50mm binoculars. It really is too small to use for Astronomy. These are usually used as simply a display piece or to look at objects on the ground a long way off. ONLY the 25mm eyepiece will be useful-- the others have too much magnification for this very small aperture scope.Sorry.
Read More At : 350x50mm Refractor Novice Telescopes...

Hello there, my name is Paul and I had just recently purchased the Vivitar Refractor Telescope 60X/120X with Tripod. I have assembled everything correctly, however I have tried to view the moon, but I cannot see a sing thing. All I see is a blurry light and the lens is not focused at all no matter how many times I adjusted it. If you could please help in seeing clearly I'd appreciate it very much. Thank you.


This is one of the worst telescopes you could have purchased. Plastic eyepieces and a plastic focuser! We receive many complaints about not being able to focus. Try again--- next time buy one of these which is the best value in amateur astronomy.http://www.telescope.com/control/product/~category_id=classicdobs/~pcategory=dobsonians/~product_id=08942
Read More At : (1607225) Telescope...

Telescope is only good for viewing moon...help!!!


Your scope is 565mm focal length with a 60mm objective which makes it f:9.5. (telescope focal length divided by lens diameter)all this means that the optics are capable of viewing larger planets. nebula is a bit of a stretch. maybe under exceptionally dark skies with at least 30min. of dark adaptation. brighter objects like m42 or m31 should be visible, bear in mind that only very large telescopes will resolve the slightest hint of color in nebulosity. the rest of us are reserved to gray scale. i would suggest using a 26mm eyepiece plossl if available. next make sure your finding system is aligned to the scope. this is best done during the day at a distant object like a radio tower. center the object in the eyepiece then align the finder.next get your self a good sky map like stellarium software a freebie and a fav. to ensure your looking at what you think your looking at.a word on eyepiece selection. magnification is calculated by dividing the focal length of the scope by the focal length of the eyepiece. for instance the scope is 565mm the recommended eyepiece is 26mm so the magnification would be around 22x.a rule of thumb for optics is about 50x per inch of objective. which means your scope is good for about 100x. so by the math you would use a 5.6mm e.p. to achieve 100x, however as optical powers increase field of view decreases making it difficult to find objects. find your object with a wide field e.p. then switch to a higher power to zoom in. if the image gets fuzzy at high power attempt to refocus, if it doesn't clean up either your asking a bit to much from the scope or seeing conditions in the upper atmosphere may not be ideal. what ever you do don't give up there are some amazing things to see out there.
Read More At : Voyager 78-9565 (120 x 60mm) Telescope...

Lost vision The telescope was working fine until I was trying to match the view through the smaller spotting scope with that of the main telescope, and suddenly I could faintly tell I was aimed at the moon by a soft glow alone, but could no longer actually see details nor the usual brightness of it. I've taken the scope apart and cleaned the lenses and mirror. I can see beautifully if I remove the eyepiece, but of course I'm just looking at the mirrors inside at that point. When I replace the eyepiece, all I can see is that very faint glow which, when focused, gives me that funky view of the inside of my own eyeball like when you get your eyes checked at the optometrist's office and they shine that bright light in your pupil. Any idea what's happened here and how I can fix it? Maybe I need a new eyepiece?


Your telescope is a "Newtonian," as such it requires regular "collimation" Collimation the alignment of the optics. The mirrors must be lined up properly for the telescope to deliver a good image to the eyepiece. Your scope sound like it is way out of collimation. My guess is that the diagonal (secondary) mirror has rotated in it's mount. There are three basic tools for collimating a Newtonian the Sight Tube, Cheshire and Autocollimator. To get your digonal aligned correctly you need a sight tube. Rather than spend a lot on these consider making your own and keep an eye on eBay offerings. Don't bother investing in a laser collimator, they simply don't do the job unless you go for the very best. From some help with the collimation process check these links. http://www.astronexus.com/node/6http://www.amateurastronomy.com/collimate.html The 60 page pamphlet "New Perspectives on Newtonian Collimation," Fourth Edition by Vic Menard and Tippy D’Auria runs $10, but if you really want to do it right it's worth the money. HTH, George
Read More At : Deep Space 78-9518 (675 x 114mm) Telescope...

I am a beginner looking for a good telescope. I am currently looking at a Celestron Skywatcher telescope. There are three lenses which comes with it: super wide 10mm. lens as well as a wide angle 25 mm. long eye relief lens,and a barlow lens. My question to you is, is this a good telescope for viewing objects in the sky, such as mars, moon, jupiter etc. Or do I need another lens stronger then that. I would like you to also give me an answer as soon as possible please! THANKS FOR YOUR HELP


Magnification is the LEAST important property of a telescope. Quality optics and aperture are much more important.The best bang for the buck is a reflector style telescope ion a Dobsionian mount. You get the most aperture for the least amount of money. Like this one--http://www.telescope.com/Telescopes/Dobsonian-Telescopes/Classic-Dobsonians/Orion-SkyQuest-XT6-Classic-Dobsonian-Telescope/pc/1/c/12/sc/13/p/8942.uts?refineByCategoryId=13The scope above has 6 inches of aperture and is mounted on a very stable alt az mount called a Dobsonian mount.www.telescopeman.orgwww.teleswcopeman.uswww.telescopeman.info
Read More At : Optics...

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