I believe lens coating tech has come a long, LONG way since Weavers were made in El Paso. I have a K2.5 and a K3, really like them both, but they're as capable and modern as a 1962 Ford Galaxie Sunliner.
They'll getcha there, but not with the same ease and capability as a more modern piece. One wonders if someone like Trace Scope Repair could apply some of those modern wonder coatings while they had an old piece like this apart...
How do the old Weaver k4 scopes compare to something newer but not super high end? For example a Vortex Crossfire? I love the look of the vintage stuff, but would I be giving much up in clarity, light gathering, etc?
are you speaking about the 'K4' made in El Paso with steel tube or the K4 made in Japan 15+ years ago with an alloy tube? The former is pretty poor optically compared to most scopes -- even the older Bushnell Scopechief scopes were much brighter with better sharpness and contrast. However the Microtrac adjustments - where provided - on the old steel tube scopes are very good. The Japanese made Weavers were decent products optically and folks who purchased the 'KT' Japanese scopes were pleased with the performance.
Just to be clear, I was referring to the Japanese Micro-trac Weavers. I`ve still got a Japanese Super-Slam 3-15x42 Micro-Trac , and the glass is on par with Leupold but the tracking is way superior to Leupold.
What do you mean by "tracking"??
In my experience, Weavers are strong with reliable adjustments that hold zero. While lens coatings might not be up to date, I don't feel handicapped with a Weaver. How does the Crossfire compare with those features?