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

Midwest Optical LP590

Midwest Optical Filters Blue Bandpass Filter, 30.5 mm Thread

Scratch and Dig numbers-By U.S. military standards

Surface Quality MEETOPTICS Academy

MidOpt LP Serie - Longpass Protective Filter

Midwest Optical SP625

Product Features Archives

Midwest Optical ND120

The MidOpt PR032 Linear Polarizing Filter has a useful range of 400-700nm and offers a 10,000:1 Contrast Ratio. This filter is intended for use in

PR120-22.5 Ultra High Contrast Linear Polarizing Filter (M22.5 x P0.5)

Uniforce Sales and EngineeringMidOpt Filters - Uniforce Sales and Engineering

MidOpt PC052-82 Circular Polarizing Filter