Eyecups -- I can't use the Ultravid 42 because they're not deep enough; with this Trinovid they just work. To your comments about steps I'll add that you can even rotate a bit beyond the top one to get a bit more extension; the eyecup could now be pulled straight out to remove it (the serial number is under the right one) but that takes considerable force, so it's safe to use.
I forgot to thank you for this comment!! I didn't realize the Trinovid eyecups were removable, I assumed that if so they would screw out like my wife's 8x32 UVHD. So I tried to apply a little force to see if they "unlocked" and screwed out after the final stop, but they didn't give so I assumed that was an upgrade on the Ultravids.
I recently had a horrible experience with my 8x32 Cabela's Euro HD (Meostar) where one eyecup got stuck and when I applied force to get it to screw out I ended up torquing the entire ocular assembly and wrecking the collimation! So I was very gun shy about applying too much force and breaking anything.
Thanks to your tip, I figured out how easy it is to remove the eyecups. And I see what you mean about that extra extension stop when you pull them out, that means these binoculars literally have NINE potential fixed eyecup positions that will hold their position firmly!
With the eyecups removed, I'm even more impressed at how robust and well engineered they are! Most binoculars have a hollow, thin metal cylinder with grooves to guide the rotating barrel, and is virtually guaranteed to bend and deform from the impact if you accidentally drop the binocular and it lands on that end (as it always does).
The Trinovids (and I assume other 42mm+ Leicas as well, have never checked) have a super beefy ocular assembly, it's a solid cylinder with these small metal "button" protrusions that provide resistance and lock into the detents. The eyecup itself is hard plastic with grooves and detents for the little metal buttons to click into.
It's a really ingenious and simple design that allows the eyecups to lock into place firmly. I'm shocked that other manufacturers haven't copied this obviously superior approach vs the typical "thin metal cylinder" design, but maybe Leica has patented this specific method so they can't?
The softer, more brittle plastic eyecup cylinder would probably also absorb most of the shock from an impact. I suspect on a normal drop from a few feet up that would wreck most other binoculars, on these Trinovids the worst that would happen is the plastic eyecup barrel cracks and you can just replace it.