The MidOpt 40/20 Scratch-Dig Standard

Most MidOpt filters are designed with a 40/20 scratch-dig ratio. What exactly does this mean in terms of your image results? Surface quality is important for optimal image results

Training Archive

Product Features Archives

Machine VIsion Filters - Midwest Optical - Power Motion

Midwest Optical BN740

Midwest Optical Systems

Product - Polarizing Filters and Film

Scratch & Dig Target (1st Surface Positive)

Midwest Optical Systems

MidOpt Polarising Filters

NIST Traceable Scratch Dig Standards

Product - Bandpass Filters

MidOpt PR032-46 Linear Polarizing Filter, Used to eliminate or greatly reduce glare, rotating linear polarizers offer maximum flexibility and ease of

PR032-46 Linear Polarizing Filter (M46 x P0.75)

The Truth Behind Scratch/Dig