Question about Pentax PCF V Binocular

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Pentax pcf binoculars dropped,now have double image.There is a seam where the bell attaches to the body,the seam has widened on one side causing that lens to turn to the right.Is it repairable

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  • gmess2001 Aug 05, 2010

    how is the bell attached to the rest of the body

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I would think the repair for this problem would require replacing the affected parts, and that it would run a bit of money, and combined with the labor, probably not be worth it. However, I did find out on opticsplanet.net that the unit does have a limited Lifetime Warranty, so you might check into that, just to see. In my experience, these "limited" warranties don't help you all that much, so make sure you get a solid estimate on the repairs, if you're thinking about going that route. Here's the excert from the website:
*************************************
All Pentax PCF V's as many other products in our online store are protected by aoriginal manufacturers USA Limited Lifetime Warranty.
*************************************
You might peruse this .pdf file- I'm having a problem with Adobe, so I couldn't open it to check it out, but it may have some good info for you:
www.pentaximaging.com/files/.../bino.brochure.1145_2008.pdf

I was trying to find a repair center, but that was as close as I got.
If you decide not to have it repaired, you might be able to spring it back to a viewable position, but since viewing requires such a precise placement of the lens, it may not work. I used to have a pair that experienced the same problem, and I always had to excert some torque to view clearly, and never had any luck resetting it.
Good luck, thanks for using FixYa, and hope some of this helped you!

Posted on Aug 05, 2010

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Hello. Although anything is repairable, I recommend that you put your money into a new pair of binocs. The new ones have fabulous optics and mechanisms and you will be very happy once you start using them. J.

Posted on Aug 05, 2010

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I got a bino set Pentax 10X50 PCF WPII the right eyepiece came off. Can you fix? Thanks John


Fixya is not a repair facility. Contact your local optical repair workshop, or Pentax direct.

Nov 15, 2016 | Pentax Optics

1 Answer

How do I collimate my binoculars please because they have double vision.


It'll depend a bit on the root of the problem.
You can get double vision from properly aligned binoculars if the optics are too far apart or too close, relative to the spacing of your eyes. you'll need to bend them at the central hinge to make sure that both eyes are centered on the input lenses.

If you're still getting the migraine-inducing double image, they probably got dropped at some point. This can be a wide range of difficulty to fix. Here's what I've done in some past cases with flea market binocs that I bought cheap due to the skewed alignment.

For many binocs, the upper (eyeball end) and/or lower (field end) are screwed to the central body of the binocs, where all the folding optics are to widen the lenses from your eye spacing. If they have been dropped, (or disassembled and put back together sloppy), then they may be cockeyed at one of these joins. Look at each seam to the central body and see if any of them have a gap, especially one that is larger on one side than another. You can then apply firm un-screwing twist and see if it will unscrew. if it will, and before you unscrew it all the way, wash your hands and clear a clean surface to work on. Unscrew the segment, inspect the threads for crud that might have got in while cockeyed. Then visually square up the component and gently screw it back in. if it was mis-assembled, the threads may be a bit gummed, and you'll have to be patient to keep the optic square, and back off and start again if it tries to drag over to cockeyed threading. Once it's square, gently working the thread back into place by turning back and forth a half turn back, 3/4 forward, half back, 3/4 forward, can help the thread recuperate. Eventually, it should screw all the way in, firmly, and be square. No more double vision.

For some models, like my Nikon fixed pocket binocs, there's no zoom and just a focus knob. On my brothers pair, it got cockeyed. In that case, I gently unscrewed the locking rings for the glass on the eyeball side. One of them was loose and the lens was a bit cockeyed. In that case, I removed, it (wearing nitrile gloves), cleaned it with eyeglasses cleaning solution and a microfiber cloth, put it back in, screwed the ring in firmly,and it was good to go.

Bottom line, if you have some basic DIY skills, unscrewing the entry optics, or the optics sections, isn't too big a deal. Just be mindful not to let dust (or worse) get inside while you have things open. You can get a lot of fix just from that much.

Good Luck!

Mar 11, 2015 | Fujinon Mariner WPC-XL Binocular

1 Answer

I seem to have a slight double image. when I unscrew one side of the lens a bit it lines back up, but leaves the lens loose. What could be wrong and can it be fixed? thanks,Brent.


You have the classic signs of the most common binocular fault: a bent or broken eyepiece carrier yoke.

The cause is usually due to the binos being dropped or the eyepieces getting knocked. The only cure is a replacement yoke, but the repair is rarely cost-effective unless the binos are really expensive and top-quality models. When last available new, yours sold for just over US$100 and repairs will typically far exceed that price.

Broken/bent yokes cannot be repaired: If bent, then it's near-impossible to unbend them accurately enough and in any case the process will always either break the yoke or will severely weaken it. Broken yokes cannot be glued together as the contact point is just too tiny for the loads it carries, and as it usually bends before breaking you'd simply end up with a bent yoke afterwards even if you could glue them.

Sep 10, 2010 | Pentax PCF V Binocular

1 Answer

Double image occured after the omega 40 X 70 binoculars were dropped


There are a series of lenses and prisms inside the binoculars. When the unit was dropped one of more of those elements have been dislodged and that is what is causing the double image. You can check with the retailer to see if there is a repair center in your area. The way these units are put together they are difficult to take apart, repair, and put back together. Depending on the cost of the unit you might be better off replacing them. Check with the retailer to see what they say.

Mar 17, 2010 | Omega ATN 7x50 Daytime Binoculars with...

1 Answer

Stiff focus wheel


The number one rule is to never use oil on a binocular!!
I suspect that the multistart thread on the focus arm carrier, which is internal, has become gunged up. This is not an easy repair for a beginner. The rubber has to be removed from the body of the binocular before you can even start to take them apart to determine the fault.
Like any bearing or gear system, the part would have to be cleaned with a degreaser, then reassembled with new lubricant.

Jan 04, 2010 | Pentax PCF WP II (8x40) Binocular

1 Answer

I dropped them and they are seeing double now they are the xtra-wide bushnell ,how do i get them back in focus


Try grabbing the binoculars in both hands and twisting the body in the opposite direction of the double vision until the images coincide.

Sep 25, 2009 | Bushnell Xtra-Wide (4x30) Binocular

1 Answer

Double Vision Pentax 10x50 PCF III


If you have double vision it is out of collimation (alignment of the optical axis). You need to send this to the manufacturer for repair.

Jul 05, 2009 | Pentax PCFIII (10x50) Binocular

1 Answer

Bushnell binoculars /double image


they have to be aligned if you want mail them to me for an estimate..larry@reichinstruments.com

Apr 19, 2009 | Bell & Howell Optics

1 Answer

Image appears double and slighly off when viewing


I was having a double vision problem with my Barska 10-30X50 zoom, 195FT/100YDS binoculars. One image was always higher than the other. This was tolerable at low zoom, but was further aggravated the more I zoomed in. I found that I could grasp both barrels and twist them in opposite directions (one side up, the other side down) and force the two images to merge--but that was a strain and an unpleasant viewing experience. As an experiment, while looking through the binoculars, I grasped the far end of the right barrel and twisted it on its axis. Nothing happened at first, but after a certain amount of resistance it began to rotate independently of the body. Lo and behold, this shifted the barrel's axis, and the image for that eye moved vertically! I turned it until the two images merged, and now I'm thrilled to say that the problem is solved! I don't have a clue if this would work on any other brand or model, but it's worth a try!

Apr 06, 2009 | Tasco Sonoma 16-840WA-1 (8x40MM) Binocular

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