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Lens Tube-Mounted Filters & Diffusers

Thorlabs offers several varieties of filters and diffusers mounted in SM1-threaded (1.035"-40) lens tubes.

Longpass Colored Glass Filters
Bandpass Colored Glass Filters
Color-Balancing Filters
Uncoated Absorptive ND Filters, Visible
Uncoated Absorptive ND Filters, NIR
Absorptive ND Filters, -A AR Coated
Absorptive ND Filters, -B AR Coated
Reflective ND Filters, N-BK7 Substrate
Reflective ND Filters, UV Fused Silica Substrate
ZnSe Reflective Neutral Density Filters
Apodizing Reflective ND Filters
ND Filter Wheel
Mounted, N-BK7, Ground Glass Diffusers
Engineered Diffusers
Ground Glass Alignment Disks