Longpass Lens Filter 550 nm, Select your size, passes all light above 546 nm

The Longpass Lens Filter 550 nm is designed to transmit wavelengths above 550 nm, providing a useful spectral range from approximately 535–1100 nm while strongly blocking shorter wavelengths.

• It mounts directly onto machine vision lenses using standard filter threads. By suppressing unwanted light below the cutoff point, the filter improves image contrast and enhances the visibility of features, even in complex or mixed-light conditions.
• Multiple thread sizes are available to ensure a precise fit for a wide variety of lenses.

How Longpass Lens Filter 550 nm Works

A longpass filter blocks light below a defined cutoff wavelength and allows light above that point to pass. For the LP550 filter, wavelengths above 550 nm pass with high transmission, while light below 546 nm is strongly blocked. 

Because the LP550 transmits from the yellow/red region of the visible spectrum well into the near-infrared (NIR), it is ideal for imaging systems operating under white, multispectral, or NIR-enhanced illumination.

Specification
Filter type	Longpass
Useful wavelength range	546-1100 nm

550 nm Longpass Filter Overview and Use Cases

The LP550 filter transmits light above its 550 nm cutoff, with a functional range extending into the NIR. By eliminating short visible wavelengths, the filter increases contrast, reduces flare, and stabilizes the captured signal under broad-spectrum or inconsistent lighting.

It is well suited for machine vision, automated inspection, laboratory imaging, and any application requiring precise wavelength separation.

Typical Applications includes:

• Filtering out green, cyan, and blue light

• Imaging under white-light, red-light, or mixed illumination

• Print, surface, and material inspection• Red-enhanced imaging and NIR-assisted viewing

Key Benefits of Longpass Lens Filter 550 nm:

• High transmission above 550 nm

• Strong and reliable blocking below the cutoff wavelength

• Improved edge clarity and feature contrast

• Stable imaging results in consistent or variable illumination

• Supports accurate and repeatable inspection tasks

Longpass Lens Filter 550 nm Lens & Camera Compatibility

Most machine vision lenses include a front filter thread, allowing the LP550 to be mounted directly in front of the optics.

For systems using a C-mount lens on a USB3 camera or GigE camera, the filter can also be fitted within the C-mount interface. 

This option is especially helpful when the lens has no front filter thread.

Placing the filter between the lens and camera keeps it securely aligned with the optical path and maintains consistent imaging performance without requiring hardware modifications.

The LP550 filter offers versatility for various optical setups and can be integrated easily without modifying the existing camera or lens assembly

Available Thread Sizes and Mechanical Options

To support a wide range of lens models, the LP550 is offered in numerous industry-standard thread sizes:

- C-mount filter

- 0.5 thread (pitch): M22.5×0.5, M25.5×0.5, M27×0.5, M30.5×0.5, M34×0.5, M35.5×0.5, M37×0.5, M37.5×0.5, M40.5×0.5

- 0.75 thread (pitch): M37×0.75, M43×0.75, M46×0.75, M49×0.75, M52×0.75, M55×0.75, M58×0.75, M60×0.75, M62×0.75, M67×0.75, M72×0.75 

If you plan to use a C-mount (CMT) filter thread, complete the form below to receive instant access to the installation guide and lens compatibility information.

Order LP550 Longpass Filters

Select the Longpass Lens Filter 550 nm in the thread size you need. Contact us if you need help choosing the correct cutoff wavelength or size.