. Hi stol,
No.
Your 10×40 is much better than the 10×40 in the images in the above post.
Firstly, KOMZ and ZOMZ (I will check the spelling as I'm not a Russian or Ukrainian speaker) are not the same firm.
And the second one is not a zoom such as in a zoom lens or in a zoom binocular. So using the word zoom may confuse people.
The following is the reason I think why the Baigish 10×40 does not work.
The range is 8×30 then a 50% size increase to 12×45.
The 15 times binoculars could have been 15×56.25. I.e. 15÷12 is 1.25.
1.25×45 is 56.25 mm.
Maybe sensibly they chose to reduce the aperture to 50 mm clear aperture. This would I think produce a better image by reducing aberrations.
They obviously wanted a 10 times binocular in the range.
So this should have been 10÷8 which equals 1.25 this is multiplied by 30 mm to give a 37.5 mm aperture.
So the binoculars should be 10×37.5 rather than 10×40. This I think is the cause of the problems with the 10×40 version.
Whether, simply stopping down the aperture of the 10×40 by putting a mask of 37.5 mm in front of both objectives, will regain the good performance of the other binoculars I don't know. I never bothered trying this.
It has to be appreciated that all these binoculars share a common body.
This is common in many many ranges of binoculars by most manufacturers.
The problem with this is that as you increase magnification you have to have tighter tolerances regarding collimation and image quality. An 8×30 may be very good but simply increasing to 12×45 or larger, one has to work to tighter tolerances.
The problem with trying to do research on the Internet is that the information is incomplete and sometimes inaccurate. It leads to red herrings.
The best way by far is to do original research in this case by physically having the binoculars.
Incidentally, mine were brought directly from the factory through the Russian importer, with whom I had a good personal relationship.
Hope that helps.
There are some Soviet/Russian binoculars that I don't have and which I would like to have had.
For instance the 15×110 and 20×110.
Also the strange but I think easily obtainable 16×50 image stabilised which also has other brothers.
And maybe all the Futuras, although I have the 12×50. It is actually quite good except that it has low transmission.
P.S.
the two binoculars in your images above are optically identical. They have just different body coverings. There are also other coverings such as camouflage. They are also offered with different coatings including the horrible so-called ruby coating. I've never actually seen one of these and hope that none of the retailers actually bought them.
It has to be appreciated that I think the factory were forced to reduce quality control when presented with customers who wanted absolutely minimum prices.
This means that the average quality may well have reduced over the years.
For instance, each binocular used to have full paperwork including the signature of the final quality control technician.
This is a great pity, when price means everything instead of quality and a good reputation meaning everything.
This is what happens when the final customer buys things for the lowest possible price and is unfortunately how the world is going.