Question about Bushnell Marine 13-7500 (7x50) Binocular

# Where are the collimation adjustment screws found on a Fujinon 7x50 Marine binocular?

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Hi,
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Posted on Jan 02, 2017

How to use the reticle:
The vertical scale (reticle) visible through the left half of the binocular, above the compass display, allows you to calculate distance to an object if you know its height, or to calculate the height of an object if you know its distance from you.
Each mark on the vertical scale has a value of 5 MIL (1Mil is equivalent to an angel that can determined an object one meter in height at a distance of 1000 meters). Therefore, if a navigation chart gives the height of an object, by sighting on it and counting the number of MILS, you can determine how far away it is.
To Measuer distance when height is known:
Object Height(m)/Scale Reading x 1000m=Distance in Meters
To Measure height when distance is known:

Posted on Mar 31, 2009

SOURCE: Binocular focus issue

you are right the prisms have probably shifted and it needs to be realigned, cost to realign for that model would cost about 35.00 plus shipping, if i can help any further please call 5088331232...larry

Posted on Jun 22, 2009

You can order a replacement set at: http://www.bakermarineusa.com/index.php?id=17&cat=38&prod=137

Posted on Jun 29, 2010

They were isued to the German army. My father bought a pair from a destitute soldier sitting on the wharf in Hamburg in 1945. I want to sell them now, but dont know what they are worth.

Posted on Dec 12, 2010

SOURCE: I use Fujinon Mariner 7x50

Dont Quote me in any manual anywhere but, I would try 45 degree's
Hope this helps

Posted on Apr 15, 2011

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## Related Questions:

### Dust removal inside fujinon techno-stabi binocular

The case has to be opened for this, and a can of compressed air used. There is the risk that the binocs can be knocked out of collimation, so you'd best ask a repair tech for a quote.
.

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### 7x50 Marine binoclars, Fujinon w/compass. How do you swing the compass to get it to read more acutely? The compass rose, while viewing through the lense, is slightly off kilter (not centered in the view)....

I've been thinking about this for awhile, and it seems to me you're experiencing a factory defect. I don't have one of these devices, or I'd know what "normal" was for compass, but if you can't easily have the display centered, something is out of kilter. Was it always like this, or did it just start occurring recenty? Your best venue would be to contact Fujinon support and see if they will replace or fix the problem. Here is their site:
http://www.fujinon.com/NewsAndEvents/PressReleases/pr.aspx?id=84
Good luck, and hope this helps.

Dec 31, 2010 | Fuji Optics

### Theres is a water spot inside my binoculars..please tell how to clean it.. please..i need to repair it asap..i work 4 navy engineering

when you take it apart you will effect the collimation..not something to do yourself...and you will probably scratch the coatings trying to clean...gl........ capecod389@yahoo.com

Dec 13, 2010 | Zeiss Classic B/GA 525505 (7x50) Binocular

### I have a set of Steiner Military Marine 7X50 binoculars and now they don't seem to be focusing "together" If you look through one eye cup it looks fine, same as the opposite side. But when you...

I think you mean the two sides are not quite pointing in the same direction. This is called collimation, as in "the collimation is out". Alignment would be the everyday word. In binoculars, collimation faults are usually the result of a knock causing one of the prisms to shift slightly. It can be simple to put right, for a skilled person who knows what he is doing, if adjustments are available. Or the binoculars may need disassembly and an optical bench. I imagine that you would be able to replace these more cheaply than fix them, unless they are very high quality or collectable. I have made a mess of a few pair, and had a few successes, always with binocs that were uneconomic to have repaired professionally.

Nov 16, 2010 | Optics

### Right & left eye does not focus together. They appear to be @ two different powers

Your binoculars either have a bent or broken yoke assembly (the bit which carries the eyepieces) or one or more prisms have came unseated.

The first repair involves replacing the entire yoke assembly: the part is expensive in comparison to the retail cost of a new pair of binoculars and with labour charges on top is not usually a cost-effective repair except on really high end models at prices far higher than yours which can be completely replaced for under GBP£115.

The second repair is straightforward and fairly quick for anyone with the right collimation equipment, but the screw(s) need to be secured with thread-locking liquid afterwards.

I hope you manage to use this information to fix your binoculars or at least that it assists you to choose your next course of action. Please take a moment to rate the free answer I have provided for you and any testimonial which you might wish to add is always welcome!

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### Ranging reticle in Fujinon FMTRC-SX Binocular

Its easier to explain seeing a diagram. Go to Tascos website and download the instruction manual for the Offshore binoculars or Steiner Optic website and download the general binoculars instruction manual. It has all of Steiners models incuding those with a reticle. Most reticles are the same and there is no difference between meters and yards as your calculations are an approximate.

If your Fujinon is an ex military unit it has what is known as an M22 reticle. It is only slighlty different as it is graduated in mils but the calculations is the same. If it is the M22, google Binocular M22 manual. The military number for this is TM 9-1240-403-12 & P

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### How to use the reticle in my Fujinon Mariner Binoculars?

How to use the reticle:
The vertical scale (reticle) visible through the left half of the binocular, above the compass display, allows you to calculate distance to an object if you know its height, or to calculate the height of an object if you know its distance from you.
Each mark on the vertical scale has a value of 5 MIL (1Mil is equivalent to an angel that can determined an object one meter in height at a distance of 1000 meters). Therefore, if a navigation chart gives the height of an object, by sighting on it and counting the number of MILS, you can determine how far away it is.
To Measuer distance when height is known:
Object Height(m)/Scale Reading x 1000m=Distance in Meters
To Measure height when distance is known:

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### Fujinon-Mariner WPC-XL Lens Cap replacement

You can order a replacement set at: http://www.bakermarineusa.com/index.php?id=17&cat=38&prod=137

Dec 02, 2008 | Fujinon Mariner WPC-XL Binocular

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