I recently bought an Ensign 820 a lovely piece of work in fine condition. The lens is clear, the shutter works, the lens standards seem straight, and the infinity focus appears perfect(checked with a ground glass and loupe.) However, the carefully tripod mounted,middle aperture, and reasonable shutter speed test role reveal a very mediocre level of sharpness. I know in the past opinions have varied over this lens. Any ideas?
My boot sale Ikon Nettar significantly out performs it.