Nikon Travelite V Zoom 7474  Binocular
Problem for Nikon Travelite V Zoom 7474 (8-24x25) Binocular

I see two 'tunnels' when using my binoculars, is this normal?




By maartenw - usenet poster

" "
I see two 'tunnels' when using my binoculars, is this normal?

Same Problem

Jan 19, 2009

-   My Vivitar 7x50 no longer form a single image.  I do not believe they have ever been dropped.  -   Guest

Jan 13, 2009

-   no help -   Guest

Oct 25, 2008

-   The two images no longer form a single merged image in the middle anymore. Just off slightly but enough that cannot use binoculars. Is there some thype of internal adjustment? -   brad2bad

Sep 30, 2008

-   My grandson dropped my 13-7307's this summer and now I can not merge the two images into one. Is this a common problem and where can I get it fixed?-   rljake

Aug 17, 2008

-   Don't recall dropping them or banging them but one eye's view is slightly higher than the other so as to cause double vision. Has NOTHING to do with distance between eyes (adjustable). It is apparent that a prism or lens or something has shifted but can't hear anything rattling or loose inside.-   blome

Best Solution

posted on Mar 06, 2008
Very Helpful)

Guest

Rank: Apprentice 
Rating: 0%, 0 votes
you can adjust the prism lenses with screws some have screws in them some have glue verry tiny adjustments needed as the lensmagnifuy this misalignment

Solution #2

posted on Jan 03, 2007
Very Helpful)

Guest

Rank: Apprentice 
Rating: 0%, 0 votes
Adjusting the distance between the eyepieces will help in some cases, but sometimes, the problem is misaligned prisms. This is most likely to occur in cheaper binoculars and may be more likely in porro-prism binoculars, which are generally less durable. If prisms are the problem, there isn't much you can probably do yourself to correct it. A warranty may cover the the problem.

Solution #3

posted on Aug 08, 2005
Somewhat Helpful)

Riddle

Rank: Apprentice 
Rating: 0%, 0 votes
No. The distance between the eyes, called 'interpupillary distance', varies from person to person and your binocular must be adjusted accordingly.
Hold your binoculars in the normal viewing position.
Grasp each barrel firmly. Move the barrels closer together of further apart until you see a single circular field. Always re-set your binoculars to this position before using.
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Solution #4

posted on Feb 20, 2009
Very Helpful)

larry389

Rank: Wiz 
Rating: 83%, 33 votes
the optics have shifted and have to be realigned if i can help any further please feel free to contact me...larry@reichinstruments.com
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1 person thought this was helpful

Solution #5

posted on Dec 02, 2008
Somewhat Helpful)

larry389

Rank: Wiz 
Rating: 83%, 33 votes
boy ooh boy.everyoneone has the same problem...double image...so lets see why #1 bought a binocular for $20.00 and thought i could see.hello.....nnoooo....a good binocular costs at least $200.00 SO IF YOUR HORSE LOOSES THE RACE DONT BLAME YOUR BINOCULARS.dont by chinese junk #1.
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Solution #6

posted on Feb 26, 2009
Not Rated)

martyjean2

Rank: Apprentice 
Rating: 0%, 0 votes
I had a pair of binoculars that I drooped and could not get the image to merge, I took them apart and the prisim is glued in place, the glue broke and one of the prisims move I aligned it with the old glue and put a small drop of glue on the old glue spots, FIXED PROBLEM.
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Solution #7

posted on Feb 11, 2009
Not Rated)

larry389

Rank: Wiz 
Rating: 83%, 33 votes
the problem is the optics have shifted because of the fall, now they have to be recollimated to get a single image...that could run anywhere from $25.00 to$125.00 depending on the binocular some i just cant repair, as they were made to be thrown away, you should check the warranty before buying.....if i can be of further assistance please contact me........larry@reichinstruments.com
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Solution #8

posted on Aug 24, 2008
Not Rated)

Guest

Rank: Apprentice 
Rating: 0%, 0 votes
something has definitely shifted to cause double image if you want you can send them to me for an estimate of repair...larry@reichinstruments.com

Solution #9

posted on Aug 19, 2008
Not Rated)

larry389

Rank: Wiz 
Rating: 83%, 33 votes
binoculars are collimated to work with all interpupillary distance when they are made,in cheaper models the play in the eyepices is so bad that it will effect collimation, at different interpuppilary distance.in other words opening and closing center hinge should not effect collimation if they are alined correctly....larry@reichinstruments.com
Comments:

Oct 30, 2008

- interpupillary distance should not effect alignment if binoculars are collimated correctly, unless they are poorly made to begin with. in todays market there is just so much junk out there. if you think yours may be worth repair, you can check out my website for an estimate. hope this helps.................larry@reichinstruments.com
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11 Other Users Have The Same Problem - Continued

Comment by madajha, posted on Feb 03, 2008

one eye sees one way and the other sees the other lol not sure what happend there HELP

Comment by Guest, posted on Nov 30, 2007

seeing 2 views

Comment by Guest, posted on Nov 14, 2007

DOUBLE VISION WHEN USING BINOCULARS.

Comment by funon2wheels, posted on Nov 05, 2007

I have had my c-840wa for 3 or 4 years I dropped them and knowing it was not covered by warranty I attempted to fix them. One connection point cracked loose.Repairs worked the first time. Dropped again unfortunately I have had no success this time, the damage causes double images it's apparent its the prism when I attempted to fix it this time the prism came completely loose. Any pointerts on this repair.

Comment by Guest, posted on Nov 05, 2007

I have had my c-840wa for 3 or 4 years I dropped them and knowing it was not covered by warranty I attempted to fix them. One connection point cracked loose.Repairs worked the first time. Dropped again unfortunately I have had no success this time, the damage causes double images it's apparent its the prism when I attempted to fix it this time the prism came completely loose. Any pointerts on this repair.

Thanks,
Rick
funon2wheels@hotmail.com

Comment by maryfpoppins, posted on Nov 02, 2007

Cat knocked then off table, Bottom lense of left eyepiece( as held up to eyes) knocked out. Put back together and now have double vision.

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