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

Scratch / Dig Specifications - Mark Optics

MidOpt Polarising Filters

The Truth About Scratch And Dig

Uniforce Sales and EngineeringMidOpt Filters - Uniforce Sales and Engineering

Midwest Optical ND120

The MidOpt 40/20 Scratch-Dig Standard

Understanding Surface Quality: A Practical Guide, Test & Measurement

Understanding Surface Quality Specifications

Midwest Optical SP625

MidOpt Polarising Filters

Midwest Optical Systems

MidOpt PR032-35.5 Linear Polarizing Filter, Used to eliminate or greatly reduce glare, rotating linear polarizers offer maximum flexibility and ease

PR032-35.5 Linear Polarizing Filter (M35.5 x P0.5)

Machine VIsion Filters - Midwest Optical - Power Motion

Uniforce Sales and EngineeringMidOpt Filters - Uniforce Sales and Engineering