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Cant find this model 18-1750. need eyepieces - Bushnell Optics

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Eyepieces come in .965, 1.25 and 2 inch formats. Measure the diameter of the focal tube to determine if you have a .965 or a 1.25 inch focuser. If you have a .965 inch tube, you are very limited in choices. Antares sells very nice .965 plossls.
If you have a 1.25in. focuser, your choices abound. Suggest a 25mm plossl or 25mm MA eyepiece first. Max magnification with a 50mm objective is about 100x. to find the highest eyepiece you can use divide the focal length of the scope by 100.

Posted on Jan 09, 2013

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Posted on Jan 02, 2017

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I need an owners manual and eye pieces


What make and model is it? Eyepieces which may be suitable are like these

http://www.optcorp.com/eyepieces/all-eyepieces-not-sets-kits.html?e_series=2904

May 29, 2015 | Optics

1 Answer

I need an eyepiece for a discovery telescope model 5060 .965 dia.?


There are many sources for telescope eyepieces on the internet. Just Google ".965" telescope eyepieces", and choose one.

Dec 08, 2014 | Optics

1 Answer

I cant view anything from the finderscope in relation to the telescope


They must be lined up, and if you are using a higher power eyepiece, this must be more precise as your field of view is smaller.
There will be some type of adjustment on the finderscope, probably 3 thumbscrews around the holder tube.

Put in a low power eyepiece and point the scope at a local feature such as a streetlight or distant building. Get this centered in the eyepiece. Then adjust the finder only so the feature is centered in the finder as well.

Put in a higher power eyepiece and center the feature again in the telescope EP, and readjust the finder centering by itself, if needed.

Then choose a bright star and by moving the scope mount, place this in the center of the finder. Check if the star is properly centered in the EP as well and if not, move the scope mount until it is. Then finally adjust the finder centering by itself.

Feb 07, 2012 | Celestron Optics

2 Answers

Cant see ****


Cannot see anything in the daytime? We need more details.

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

You must follow the setup procedures in the manual for accurate GOTO function at night.

Nov 09, 2010 | Celestron NexStar 114GT (269 x 114mm)...

1 Answer

I need to purchase the meade polaris model # 60az-d eye pieces that you use to look through the telescope.


You need to purchase .965 diameter eyepieces. 700mm ( focal length of scope)/ eyepiece focal length=magnification. Maximum power of a 60mm scope is about 225x (under perfect conditions)
I would get a 25mm 700/25=28x for low power see link below
http://cgi.ebay.com/Meade-MA25-25mm-965-telescope-eyepiece-NEW-/230542978572?pt=LH_DefaultDomain_0&hash=item35ad6eae0c
and then for higher power 700/8=87.5x
http://cgi.ebay.com/Astro-Optics-8mm-Deluxe-965-Telescope-Eyepiece-/230543763551?pt=LH_DefaultDomain_0&hash=item35ad7aa85f
There are not many options with .965 eyepieces I would get a .965 to 1.25 adapter or .965 to 1.25 hybrid diagonal. That way you have more options on better eyepieces and the 1.25 eyepieces can be used for better telescopes in the future.

Oct 31, 2010 | Meade Polaris 60AZ-D (120 x 60mm)...

1 Answer

Need eyepieces for Nikon Monarch ATB 8x42 Binoculars


If its the caps that cover them Nikon in your country can order them. They take about six to eight weeks if they are not in stock. If its the actual eyepiece lens an all you would need to have purposfully removed them and in doing so destroyed the waterproofing. If its the caps contact Nikon. You can also download the instructions from their website.

Jul 08, 2009 | Nikon Monarch ATB 7344 Binocular

1 Answer

Etx cant focus


The LPI camera will HIGHLY magnify the image-- about like a 6mm -8mm eyepiece-- tiny adjustments are needed to focus. You can buy a .5 or .3 focal reducer which will widen the field of view and make it easier to focus--

On my LX90 --- it takes about 20 TURNS of the focus knob to go between the eyepiece view and the camera view!

Jan 11, 2009 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

Bushnell Rangemaster Eyepiece


if i remember correctly the rangemaster was a rather heavy and large binocular.had very nice optics. if you want unscrew the eyepiece you still have and i can see if i have one. sometimes we epoxy two matchining eyetops when original cant be found..mail the eyepiece to me at the following link and i'll see what i can do......www.reichinstruments.com

Dec 11, 2008 | Optics

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

3 Answers

Bushnell 18-1560 Telescope


Hello,
What you have is called a refractor-type telescope with the primary lenses (the Objective) at the top of the tube and the only other lenses in the system are your selection of eyepieces, probably a barlow lens (2X magnification of any eyepiece used), and a diagonal (in line mirror so that you cand see into the telescope from the side.). As the focal lenth of the eyepiece decreases, so does the distance away from the Objective Lens. I believe that you are using the telescope with a diagonal mirror which makes the optical path longer. The fact that your longer focal lenght eyepiece can focus and not your short one would be only if you didn't have the diagonal or the eyepiece all the way in tight to allow the focus mechanism (rack and pinioin) to get compressed enough to focus. Look at the Moon, if the image gets smaller then bigger as you focus, but not sharp, then I would have to tell you that your eyepeice lenses are not in the right order. Someoner may have taken it apart and didn.t put them back in the correct order. The lenese could just be very dirty also. Barrow a short focal lenght eyepice from a friend and see if it works in your system. Then you will know for sure.

May 15, 2007 | Bushnell Deep Space 18-1560 (150 x 53mm)...

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