Viking 7x50 11° TFOV??? ELEVEN?

[Raph-in-the-sky]

Hello, 

Looking on a local second hand shop I stubled upon these Viking 7x50 binoculars. Apparently, it has a field of view of 11°. Is that even possible? If it is it should be super expensive right?

If anybody has some info / insights that would be appreciated.

Cheers,

Raphael

 

[Louis D]

If you can get them for between $50 and $100, they should be a good deal.  Check that the images align, look down into them to see if there is obvious fogging or mold on any of the optics.  Minor dust isn't much of an issue.  Make sure that the focus and eyepiece diopter move smoothly.  If they are near mint, you could go over $100 for them.

These were made in Japan in the 50s and early 60s.  They had oversized prisms and usually had large eye lenses.  Eye relief is tight to get the 77° AFOV.  They often employed aspherics in the eyepiece to get decent correction in the outer parts of the image.

I would contact SMark on CN for further guidance.  He is about the most knowledgeable person on these vintage binoculars on the planet.

[Raph-in-the-sky]

24 minutes ago, Louis D said:

If you can get them for between $50 and $100, they should be a good deal.  Check that the images align, look down into them to see if there is obvious fogging or mold on any of the optics.  Minor dust isn't much of an issue.  Make sure that the focus and eyepiece diopter move smoothly.  If they are near mint, you could go over $100 for them.

These were made in Japan in the 50s and early 60s.  They had oversized prisms and usually had large eye lenses.  Eye relief is tight to get the 77° AFOV.  They often employed aspherics in the eyepiece to get decent correction in the outer parts of the image.

I would contact SMark on CN for further guidance.  He is about the most knowledgeable person on these vintage binoculars on the planet.

Thank you so much Louis. Very helpfull as always!