Nikon Optics - Page 7 - Popular Questions, Answers, Tips & Manuals

On my laser 500 G I held both buttons down together for a short time and it began reading again. See if that works with yours.

I didn't find the Prostaff laser 440 rangefinder on the website for Nikon.com, but I did find the 550 model. The specs follow:
Specifications

• Measurement Range 11-550 yds
• Increment Reading 0.5/1 yds
• Magnification 6x
• Angular Field of View (Real) 6°
• Angular Field of View (Apparent) 34.9°
• Viewfinder Display meters/yards
• Eye Relief 18mm
• Diopter Adjustment +/-4°
• Power Source 1 CR2 Lithium Battery
• Size (Length x Width x Height) 5.1 x 1.5 x 2.7 in
• Weight w/o Batteries 6.3 oz
• Objective Diameter 21mm
• Exit Pupil 3.5mm
• Supplied Accessories CR2 lithium battery.
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I did not read that there is a recalibration for the unit, although a consumer might expect that. Has it ever been dropped to your knowledge?

http://nikon.com/products/sportoptics/support/index.htm

The above link has contact information for service of the unit via telephone numbers.

It is possible but not advisable. It should be done by a professional and requires special tools.
If you have a spring loaded gun, the binary recoil will destroy it in short time. If it's a PCP, you want a scope with on-the-fly adjustable parallax for range finding.

My advice would be to change this scope for a dedicated air-rifle scope.

There may be a short cut because of the humidity. First dry it.

Good day sir, try the link below.
manual1
manual2

Aside from an internal electrical problem, it could be as simple as slightly oxidized battery contacts inside the unit. Clean them good, with a qtip and isopropyl alcohol, and ensure the batteries have clean contacts also.
If you can't fix it cleaning the contacts, the unit will have to be serviced.
Couldn't find the support site on the net, could be Nikon or Thomas, so refer to your manual.
Good luck, hope this helped, and thanks for using FixYa.

The double image is caused by the most common killer-fault on almost all binoculars: the yoke assembly which the eyepieces is mounted on has either bent or broken.

The only fix is to replace the yoke assembly: unbending it is not accurate enough and usually breaks it, gluing is no good as the contact surfaces are far too small for the adhesive to carry the mechanical loads, and usually results in a yoke which still needs unbending...

It's not a cheap fix and is only worth doing on really expensive models: given that you can buy the same pair again for less than £60 in the USA and around £100 in the UK then it's a no-brainer as the new model will cost far less than the repairs.

Sorry to disappoint you, but some faults just cannot be economically repaired. I hope that my answer has still been of use to you and that you take a moment to rate my answer.

This is more of a hardware problem but a reset can be performed by holding on the power button for 10 seconds. The problem is related to the timing device(that measures the time the laser has taken to reach the target) is not triggering correctly which I think is causing the problem. Though I hate to say this its probably time for a repair.

Hi. I share your frustration as I had the same situation with a very powerful and expensive bird spotting scope. I finally decided to get a new webcam which was compatible. For just a few dollars I ended my search and my frustration. J.

http://nikonusa.com/pdf/sportoptics/prostafftea.pdf

Or visit nikonusa.com for other categories if this doesn't cover it.

The eyepiece yoke is bent or broken; it's by far the single most common fault which occurs to binoculars. Attempting yo unbend it is not accurate enough and usually breaks it. A broken yoke cannot be glued as the loads are too great for the tiny contact area, and even if you could glue it you'd end up with a bent yoke...

The ONLY fix is to replace the yoke, but it's not a cheap repair and on some models requires specialist tools to set up the binoculars correctly again. Also you lose any nitrogen gas filling (not vital).

In reality, the repair is only worth doing to really expensive binoculars or if yours are covered by an accidental damage insurance policy. Yours weren't cheap, but a new pair will cost less than repairing yours and will have a full manufacturer's warranty.

You have a lazy eye, not terribly important that you should worry about it.

try http://www.manualsonline.com/

Basic things to check:

Scope base screws - make sure they are tight. 30 in/lbs or so.
Scope rings - make sure they are tight and grip the scope securely. 15 - 20 in/lbs for steel rings.
Scope attachment screws - tighten securely.

Change in ammunition?
Change in rifle rest technique? you should be resting the stock on your rest, not the barrel.

started using a sling? this can change POI.

Is your bore clean? Use a copper remover after your normal cleaning process.

Check the barrel crown for damage.
Check the action mounting screws for proper torque.

Hope some of this helps!

If that's the case then you cannot repair them on a DIY basis as the prism needs to be very accurately reset and the binoculars ideally require refilling with dry nitrogen afterwards. Some repairers won't even touch them as they are very definitely at the budget end of Nikon's range and so not really built with repairs in mind.

Given that repairs of this nature will cost far in excess of the price of a brand new pair (generally about £60 in the USA and £90 in the UK) it may be a wiser decision to sell yours online as a "spares or repairs" item and to use the proceeds towards replacing them. LIDL and Aldi in the UK regularly sell a rubber coated pair of 10x50's for just £10-£15 and I've been stunned at the image quality and the build quality has been proven to be astonishingly good: better than many £100 models which I've used. The only problem I've had is that some have a very stiff focussing wheel (straight out of the box), but both stores have always exchanged them or given a refund without fuss.

If you still wish to investigate the repair option then I can recommend Intrasights in Crewkerne who should be fairly close to you. I've used them a number of times and been very happy. They're also rather cheaper than my regular local repairer, Kay Optical. Note that neither company will want to agree with my assessment of the LIDL and Aldi binoculars though!!

Sorry there's no quick DIY fix on offer, but I hope that my reply has helped you to decide what to do next. Please take a moment to rate my answer, or please add a comment if there's anything about my reply which you want me to expand upon.

Does this pair have two parallel tubes with a bridge in between?
If it does, then removing the caps at the eyepiece end of each hinge will reveal a grub screw. Tightening these will add tension to the hinge and give you the proper feel once more.

Base from the description of your problem and from what have happened , Yes this is a alignment problem and its still worth of having service since that wont cost that much rather than getting a new one. So to avoid further damage on the unit better take it to a service repair on your area and have it fix.

It depends upon the model.
For Monarchs the serial number is on the underside of the RH hinge
On the Actions it is on th central hinge plate with the PD scale
For the compact Sportstars it is under the central bridge.

nikon will repair for 20.00

http://support.nikontech.com/app/answers/detail/a_id/14461/related/1/kw/binoculars/r_id/116678

There are several reasons why they could be out. First check to see that the front extension that hold the objectives are still square. Set them on a table and see if both front ends sit flat. One side might be "cocked" in the thread. If not then it is internal which will require a strip down and rebuild by someone who knows what they are doing.