Complex sentence: Many camera manufacturers of interchangeable lenses produce a few great lenses among their line, but Konica managed to achieve near excellent quality over a broad range of focal lengths in lens tests conducted by several photographic publications over the years.
Split into simpler sentences: Many camera manufacturers of interchangeable lenses produce a few great lenses among their line, but Konica managed to achieve near excellent quality over a broad range of focal lengths. In lens tests conducted by several photographic publications over the years.