Have you ever seen these?

[strayring]

I am quite fascinated by this advert having never seen anything like thos before. 

Variable vintage turret binoculars..

Very interesting but I wonder what the quality will be.

[Ruud]

That's creepy!

[DaveL59]

they don't seem to come up often, should be ok tho if a good make. try checking on cloudynights and birdforum to see if there's any reviews or more details

[PeterW]

Never heard mention of any in the main vintage binocular sites... 4eyes!!

 

peter

[Paul M]

So how do those work?

Is the light path split between the 2 pairs of oculars? Or does it switch to either/or?

Seems a very novel solution to a problem I never knew existed!

[Captain Scarlet]

I would imagine the plates in which the eyepieces sit rotate about their centres so that you can effectively change eyepieces. Think filter wheel for eyepieces...

M

[Paul M]

6 minutes ago, Captain Magenta said:

I would imagine the plates in which the eyepieces sit rotate about their centres so that you can effectively change eyepieces. Think filter wheel for eyepieces...

M

Ah! Of course. I see now. I was way, way, way overthinking it!

[Captain Scarlet]

Judging by his avatar it would be right up  @Stu’s street 😂

[DaveL59]

2 hours ago, PeterW said:

Never heard mention of any in the main vintage binocular sites... 4eyes!!

 

peter

I have but of course can't locate the details now so can only suggest a search. Ideally if the maker can be ID'd that may help too. I've seen only a couple pairs come up when I was collecting so they don't seem to be that common, but a neat way to have dual magnification and not have the penalty of zoom EPs

[Peter Drew]

I think they would suit Stu.   😀

[DaveL59]

doh, maker Atlas, ok here you go
https://www.cloudynights.com/topic/367880-atlas-multiple-eyepiece-binoculars-info/

tho not a lot of info, know I've seen other mentions but not finding them for now

[michael.h.f.wilkinson]

Weird pair of bins. Real collector's item