Nikon Aculon A211 vs Vortex Viper HD

I doubt there's any easy math for finding FOV at the long end because the zoom optics add complexity that will interact with FOV.

I found it difficult to see thru these binoculars. The field of view is small with blurry edges. The view improves if the eye cups are resting on my eyelids, but that leaves smears on the lenses. I tried it with the eye cups extended but then needed to press more firmly into my eye sockets, and still get smears when my eyes are close enough

But when you're at the full 22 power on these binoculars, sighting in, if you've got like a shoot and see target or something and you're sighting in y...

Usually around $250 for solid optics and good warranty. But also I like the Nikon Monarch M5 or M7 (Check REI or B&H Photo for possible deals).