Bunches of birds in the backyard this week, so I pulled out some binoculars. First pair, four years old,had an apparent mechanical maladjustment, and I couldn't get a clear image. Second pair, ten to 15 years, just seemed kinda dark.
So, I dug deeper in my closet. Found the pair my dad had from the 60's; the pair we used to watch rocket launches growing up on Merritt Island...
Wow, what an improvement. Like going from standard def to HDTV.
Even budget Japanese optics from the '60s had astounding quality.