In fact, I have a B1 8x32 that I bought used as early as 2013 so it should qualify as vintage, right? To me, the colour cast is decidedly yellow similar to, but not as pronounced as the old 10x40 Dialyt T*. That is why I yearned för a newer iteration and you provided it

This colour cast can be disturbing in overcast weather. I had one binocular that certainly had an amber colour cast and it was the 1st gen Nikon HG 10x32 (same as the LX, pre-HGL/LXL). Ath the same time I had the 10x32 FL and both were very nice in their own regard, but both were too far off neutral colour.
//L
Ok, owning both: how do you characterize the color difference between the 2013 B1 and the current B1 Plus?
As mentioned before I have looked through older B1 Meostars which I found too yellow/orangey for my liking, it was overbearing in late afternoon light. The B1 8x32 I have is nowhere nere that, though it is on the warm side of neutral. It is a 2015/2016 B1.
A short look at our silver grey car with grassy (green/yellow) background and a low lit gravel road as a backdrop gives me the impression that the B1 8x32 I have is ever so slightly warmer than the B1 Plus 12x50HD.
In comparison to the SFL 8x40 the 12x50HD is similar, perhaps the SFL is a little cooler but going from the SFL to the B1 and back again the impression is that the B1 is just slightly warmer than both of them.
Adding the Leica 12x50 UVHD+ to the mix it also feels a little bit warmer than the SFL but more of a reddish warmer instead of the slight amber warmer of the Meopta B1.
After swapping around for a little while all I could tell is that all of them are nice to look through and except for the initial difference I failed to find something that made me go "uhuh" with any of them.
Swapping between the B1 8x32 and the Leica UVHD+ they are more similar than the others both in respect of "warmth" and CA behaviour.
In both cases I like the image I get out of them.
At the top of my preference list when it comes to color rendition Leica has always come out strong. The 12x50 UVHD+ follows in that tradition.
It does not mean it is the best on paper, it is just that I really like looking through the Ultravid binoculars but up until I changed glasses there was a slight penalty in viewing comfort for me.
I am off now for a few hours of glassing with the Meostar and the Leica 12x50. It will be a mix of forest and long range viewing (from a lookout near the house). Visibility is great today, chilly and clear blue skies. Perfect for a 12-15X bino on a monopod.
