A favourite amongst birdwatchers in the 1960's and '70's. Ross mage some incredible binoculars in this period but took a dive when they introduced the appalling quality plastic Solaross et al. The optics in the Solaross era were good but the build quality was truly awful.
These Stepruva's are very sharp with neutral colour rendition. Build quality right up there with Zeiss of the time. Thoroughly recommended and my goto binoculars, even over my Zeiss and Leica/Leitz.