Question about Bushnell Spacemaster 78-2317 (15-45x60 mm)

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Spacemaster 15x45 78-2317zoom eyepiece -insufficient eye-relief for eyeglasses-Bushnell is no help. Are there compatible fixed or zoom eyepieces out there? Tx, charlie

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Posted on Jan 02, 2017

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Noggin
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SOURCE: eyepieces not fitting into 90-degree penta mirror

Here's the link to the user manual if you need it; http://www.bushnell.com/customer_service/manuals/telescopes/78-9440_Voyager.pdf Check the bottom of page 3, I think it answers your question - eyepieces should insert directly into the penta mirror. check page 9 for a diagram showing the whole assembly. If it turns out you have the wrong eyepieces, you can contact bushnell's spares department on; http://www.bushnell.com/customer_service/partsinfo.cfm?section=General%20Use Hope this helps, please ask again if you need more info :)

Posted on Sep 16, 2007

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SOURCE: parts

I'm listing one that works but is missing only the eye piece lense, however the mirror and everything else it entact just FYI
check ebay listing search for bushnell 78-9512 I'll be listing as we speak

Posted on Feb 01, 2008

  • 16 Answers

SOURCE: Bushnell Ensign 7X35

since some models change the size of the eyecaps they use ,your best bet is to take off the other side and mail to bushnell for a proper match

Posted on Jul 15, 2008

  • 112 Answers

SOURCE: 15x45 eye piece

call bushnell@18004233537 for your nearest distributor good luck...larry@reichinstruments.com

Posted on Nov 28, 2008

  • 112 Answers

SOURCE: bushnell insta-focus mechanism gets stuck.

they were famous for that, because the screwpin that holds the eyepice shaft is metal and the groove that it rides in is plastic, and eventually gets jammed....look where you put your fingers to adjust eyepieces. should be small metal plate in center of hinge(sometimes with bushnell logo) that will simply pry off by using small screw driver,and now you will be able to see if the screw is loose or damaged. good luck...larry@reichinstruments.com

Posted on Jan 16, 2009

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1 Answer

How to hold binoculars properly


1. Remove the lens covers, if they are in place.
2. Set the diopter on the right barrel eyepiece. The function of this setting is to adjust between vision differences between your eyes if you are NOT wearing corrective lenses. Set to zero if you do have corrective lenses on (glasses or contacts). For proper diopter adjustment see this article: Binocular Selection Guide.
3. Most binoculars will hinge in the middle to allow for differences in the spacing between the eyes. Set the spacing to fit your eyes.
4. Adjust eye cups. Each eyepiece will have a means of maintaining the correct eye relief for the user. On quality binoculars the rim of the eyepiece will extend and retract as you twist the eyepiece rim. Move all the way in if you are wearing eyeglasses or adjust out if not wearing eyeglasses. You will know if they are set correctly when you look through the binoculars and check to be sure that the circular edge of the view should be sharp and not fuzzy. At this point we are not looking at any object in the view but rather the perimeter of the view. You may need to adjust the eye cups again to compensate. On lower cost binoculars the eyecup may only be a rubber lip that you either fold over (the "in" position) or out.
5 Raise binoculars to your eyes and use one finger to adjust the focus wheel on the center shaft between the two barrels, until the view is in sharp focus. If viewing for extended periods you may want to keep your elbows down near your side as this will increase comfort while viewing.
Final safety tip: Do not look at the sun through binoculars.

Many people enjoy observing nature with binoculars. Having them handy is key. Hunting, astronomy, marine use, and stadium sports are a few more activities where having a pair of binoculars can make a real impact to your experience.

Mar 06, 2014 | Zeiss Optics

1 Answer

A lens is missing


This telescope uses 1.25 inch eyepieces. Comes originally with a 20mm and a 4mm (probably cheap modified acromats) The 4mm would exceed the maximum practical magnification. 50x per inch. Many eyepieces available on Ebay and telescope vendors. If the 20mm is missing, buy a 20mm Plossl. I prefer other designs focal lengths under 12.5mm because of the eye relief. Agenaastro makes great, inexpensive ($55). I like the Sterling Plossls from Smartastronomy too Eyepieces for planetary viewing I suggest the 5.2mm for your high power or a TMB planetary (Astronomics has them for $50 Get the 5 or 6mm

Clear Skies!

Oct 04, 2012 | Bushnell NorthStar 78-8831 (525 x 76mm)...

1 Answer

I need to replace eye pieces for Baush and Lomb elite 61-2843. These are the flexible eye relief cups.


Contact Bushnell, they will most likely ask for the binoculars shipped to them so they can replace the lenses. If the rubber eyeguards are cracking, contact Nikon below.

Eyecup (8X32 SE and 10X42 SE)
Nikon Part Number 7636

Eyepiece rainguard (covers both eyepieces)
Nikon Part Number 7634

Objective cap (SE 8X32)
Nikon Part Number 7678

The flexible eyecups are easy to remove and replace...if you just take your time working them on and off.


http://www.nikonusa.com/fileuploads/westernservice/moving.html
Nikon Parts Department
841 Apollo Street
Suite 100
El Segundo, CA 90245-4721
New Phone 310-414-8107
New Fax 310-335-9242
Our toll-free numbers will remain the same:
1-800-NIKONUX (for technical support)
1-800-NIKONSV (for service support)

Oct 30, 2011 | Optics

1 Answer

Eye pice for serial no dt2921


You will not find a manual nor will anyone service this SPOTTING scope. It has a fixed zoom eyepiece. You will not find a replacement.

NEVER BUY a Tasco or Bushnell telescope.

It "may" be possible to get this repaired at their service centers located here:
http://www.opticsplanet.net/bushnell-warranty.html

They will want you to return the scope and pay shipping and then pay for repairs. This scope is NOT worth that kind of expense.

Aug 30, 2010 | Bausch and Lomb Discoverer 78-1600...

1 Answer

The diopter setting eyepiece has come out of the body of my Bushnell 10X42 ''Waterproof'' binoculars, model 13-2410. I see keyways inside, but cannot screw it back in more than about 1/4 turn, which is...


The entire diopter setting eyepiece was off.I separated the eye cup from the rest of the diopter setting eyepiece, and aligned the channel guides on the lens piece to slide it into place. Then holding it in place, taking care not to gum up the lens, I experimented with how to screw in the retainer ring so that its white dot registered correctly. Finally reattach the eye cup and focus. It's like new!

Apr 10, 2010 | Bushnell Waterproof Binoculars

1 Answer

I need an eye piece for a bushnell sky chief 1. model 78-5500. anyone know where to find one?


Eyepieces come in 3 sizes-- .965, 1.25, and 2 inch.

Measure the hole -- several on-line retailers sell eyepieces.

Here are two--

http://www.agenaastro.com/

http://shop.telescope-warehouse.com/ he carries the small .965 eyepieces.

Mar 23, 2010 | Bushnell Optics

1 Answer

I need an eye piece for a Bushnell AK-78-9440 Telescope


Eyepieces are either .965 inch or 1.25 inch in size. Measure the hole. You can buy eyepieces from many on line astronomy shops. Here are two:

http://www.agenaastro.com/Telescope-Eyepiece-s/3.htm

http://www.optcorp.com/

Oct 09, 2009 | Bushnell Voyager 78-9440 (440 x 12.5mm)...

1 Answer

Need to know what diagonal and eyepiece to use


The old Celestron C90's used 0.935" diameter accessories. You can check this yourself by measuring the opening at the back of the C90 with a ruler. Preferably, you would want to get a 1-1/4" visual back for the C90 so that you can use the far more common 1-1/4" diameter telescope eyepieces and accessories.

If you are planning on doing terrestrial observations, you can use a Porro prism to get a correctly oriented image, or you can use a 90 degree angled Amici roof prism to get a correctly oriented image. If you plan on doing celestial viewing, a simple 90 degree diagonal will suffice since it really doesn't matter if the image is reversed left to right.

Various focal length eyepieces merely give you different magnifications with the telescope. To find the magnification, simply divide the telescope's focal length (1200mm) by the focal length of the eyepiece. A 25mm eyepiece, for example, would give you a magnification of 1200/25 = 48 power.

Modern eyepieces are available which provide a variety of magnifications, yet which also have a consistent eye relief (distance from the top of the eyepiece to your eyeball) of around 20mm. This is very handy, especially when using higher magnifications, since these eyepieces are much easier to look through and since they can be used if you must wear eyeglasses to correct for astigmatism within your eyes.

Orion telescope center has knowledgeable staff who can help you choose a good set of eyepieces and accessories to use with your C90.

Mar 23, 2009 | Cameras

1 Answer

The eye piece keeps falling out.... What holds it in? Bushnell voyager 78-9565


There are several different types of eyepiece holders:

Set-Screw-- this is a small screw on the side of the diagonal that holds in the eyepiece.

Compression ring-- again a small set screw but a brass compression ring tightens onto the eyepiece.

Plain Compression Diagonal-- the diagonal is a tight fit to the eyepiece- try binding it slightly in to get a tighter fit.

Dec 17, 2008 | Bushnell Voyager 78-9565 (120 x 60mm)...

1 Answer

Is the viewfinder of the DiMAGE 7i high eye-relief type?


Yes, the eye-relief is approximately 20mm from the eyepiece lens and 17.5mm form the eyepiece frame.

Sep 15, 2005 | Konica Minolta DiMAGE 7i Digital Camera

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