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Can anyone identify these vintage binoculars?


pipnina

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These binoculars have been in my family since my great grandad, but me and my dad can't figure out what exactly they were.

All we've got so far is that they are japanese and seem to have little or unnoticeable chromatic abberation but some internal reflections (It makes finding the moon easy though XD).

Does anyone here know more?

Images:

http://i.imgur.com/0h0Cy0A.jpg

http://i.imgur.com/LksMBUO.jpg

We'd like to know (Since we don't really know much about optics in general) If it's worth getting the right focuser fixed (Rotating the eyepeice doesn't do anything, it just slides over the stop point) or just getting a new pair.

(Or, maybe, if it's worth anything to a collector, however unlikely)

Thanks,

     ~pipnina

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If you take a look at the right eye diopter adjustment ring you should find some tiny grub screws.

You will need a small jewelers screwdriver to tighten each one.

Be sure to center the zero (0) mark with the small white dot beneath it. 

Hopefully this will snug things in place and allow you to focus the right eye diopter adjustment.

Stan

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If you take a look at the right eye diopter adjustment ring you should find some tiny grub screws.

You will need a small jewelers screwdriver to tighten each one.

Be sure to center the zero (0) mark with the small white dot beneath it. 

Hopefully this will snug things in place and allow you to focus the right eye diopter adjustment.

Stan

That fixed the problem entirely! Thanks so much!

I can use them now without giving me a headache!

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Those binoculars must have a really nice wide apparent field of view to get an 8 degree true field at 10x magnification, most modern 10x50s only manage 6.5° true field, 65° afov.

I think it would be hard to replace them like for like without spending a few hundred quid.

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Those binoculars must have a really nice wide apparent field of view to get an 8 degree true field at 10x magnification, most modern 10x50s only manage 6.5° true field, 65° afov.

I think it would be hard to replace them like for like without spending a few hundred quid.

Really? I guess my great grandad either got lucky or knew what was up.

I gotta say, after Halleluja told me how to fix them, I was amazed at the increase of contrast and sharpness I got from these practically ancient optics. Like I mentioned earlier, there are some internal reflections, but that's hardly going to matter since I'll be using it to see some fairly dim things.

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Like I mentioned earlier, there are some internal reflections, but that's hardly going to matter since I'll be using it to see some fairly dim things.

Find yourself  two sheets of BLACK construction paper & roll them into tubes that will fit over the objective ends of the binocular.

http://www.staples.com/Construction-Paper-9-inch-x-12-inch-Black-50-Sheets/product_402652

Tape them in place. Start out with lengths of approximately 5 or 6 inches long.

By experimenting you should be able to cut down on some of the internal reflections.

If the reflections are at the eyepiece ends of the binocular you could try some aftermarket rubber bat-wing eyecups to block stray light from the sides.

http://www.ebay.com/itm/FIELD-OPTICS-EYESHIELD-FOR-BINOCULARS-BUY-1-GET-1-COMPACT-EYECUPS-EYEGUARDS-/191513490932?pt=LH_DefaultDomain_0&hash=item2c9717f5f4

Stan

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Perl is a French brand name that was used by a distributor of optical equipment in France.

They distributed good quality equipment I believe: I have a nice 60mm refractor branded Perl but which was made by SYW (Yamamoto) of Japan..Yamamoto were later bought by Takahashi, makers of some of the best telescopes in the world.

Perl also distributed Vixen equipment in France.

I don't think there is much doubt that your binoculars are of good quality and would be as good or likely better then many modern Chinese equivalents.

I would keep them.

Dave

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