Mechanical Lens Clock ±20 Dioptres with Dial

✅ Read the dial directly. A mechanical dial gives a visible reference while you measure a lens surface.

✅ Compare surfaces. The ±20-dioptre scale offers a common reference when comparing compatible lenses.

✅ Keep it with your tools. The compact body and storage case make it easy to store beside optical instruments.

✅ Check the reading interval. The scale reads in 0.25 steps across the measurement range.

A direct dial reading of lens curvature

A mechanical lens clock for checking the curvature of compatible lens surfaces. It reads on an analogue dial across ±20 dioptres in 0.25 steps, with an n1.53 reference. The body measures about 70 × 107 × 22 mm and comes with a storage case.

Technical details

• n1.53
• ±20 dioptres
• Reading interval: 0.25
• 70 × 107 × 22 mm
• 81.5 g
• storage case

Compare the dial and contacts with your measurement needs.