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Special Close Focus Nikon 8x30 E - for 1.5 m to 6 m! (1 Viewer)

John A Roberts

Well-known member
Australia
Special Close Focus 8x30 E - for 1.5 m to 6 m!

I came across this while doing some research on Nikon’s Porro prism binoculars
It’s from a Japanese sales site: https://item.mercari.com/jp/m300442...bR7sKpEWz8pXHoWHi6WxqpoA-NFnDYRXpPju1K6tFt1NW

It appears to be a standard multicoated 8x30 E (serial number #440,358), modified for specialised close range use
The text suggests it’s for industrial use, to read glass covered instrument dials

Besides modification for closer focus, there would also need to be alteration to the collimation to align the two images at such close range

The additional markings on the left hand prism plate are clearly professionally done (so by Nikon, as opposed to an after sale conversion?)

I couldn’t find any other references to such a model
Perhaps some Nikonista has more information?

John
 

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dries1

Member
Thanks John for sharing this. I have a few E series models. It looks like it sold for less than 2 hundred, about the going price for an E 8X30 in decent shape, and I have never seen that on an E series glass before. It is interesting.

Andy W.
 

PeterPS

MEMBER
John:

Interesting find, thanks for sharing. This pair might be a desirable item for a Nikon collector (I hope Simon Spiers reads your post). The eyecups are somehwat special, anyway they're different from those of standard E binos---btw, it seems that there are some markings (Nikon?) on the eye lenses, which would be strange.

Peter
 

Binastro

Well-known member
In the nuclear industry there are thick windows where remote viewing is necessary.
The windows become brown and have to be exposed to strong ultraviolet to reverse the process.
If I saw this binocular, I'd monitor it carefully, in case of the small possibility it was used for this purpose.

It was probably used for other remote viewing applications.
 

jring

Well-known member
In the nuclear industry there are thick windows where remote viewing is necessary.
The windows become brown and have to be exposed to strong ultraviolet to reverse the process.
If I saw this binocular, I'd monitor it carefully, in case of the small possibility it was used for this purpose.

It was probably used for other remote viewing applications.

Hi,
speaking of which, Zeiss 20x60 stabilized bins were routinely used in west german nuclear power plants for inspection work... nowadays the power plants get switched off and built back - not sure where the bins ended up...

So bring a doubler, a resolution chart and a geiger counter for buying used optics?

Joachim
 

dries1

Member
The eye cups on those appear to me the same as standard E series with the inner fitting ocular covers with the Nikon logo.

Andy W.
 

henry link

Well-known member
Andy,

I think everything is probably standard except for the length of the objective lens barrel, which only needs to be about 5mm longer than normal.
 

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