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ND 106 
Neutral Density Filter



Key features

  • Insensitive to angle of incidence
  • Decrease brightness without changing DoF
  • Stackable, combine ND-filters to achieve OD
  • Even attenuate avoid effects on color balance
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Schneider-Kreuznach Neutral Density Filter 43 mm ND 106

Schneider-Kreuznach neutral density (ND) filters uniformly reduce light intensity across the visible spectrum without affecting color balance or depth of field. By absorbing part of the incoming light, they prevent overexposure or sensor damage in demanding imaging, metrology, and laser applications.

The ND 106 filter reduces evenly the transmittance of light over the entire VIS spectrum. It decreases the brightness of an image without changing the depth of field (DoF). It attenuates light by absorbing a part of the energy of the VIS wavelength, without influence on the color balance. ND filters are used to control the intensity of light going through an optical system to avoid overexposure, blooming on imaging sensors and prevent damages on light sensitive measuring sensors.

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Technical specifications: ND 106 Filter

TypeOn request
Optical density1.8
Transmittance average1.6 %
Glass thickness1.8 +/- 0.05 mm

Filter specifications glossary

 

Specification Description
Angle of incidence (AOI) Angle between a ray of light and the surface normal to the surface it strikes
Cut-on wavelength Wavelength at which the transmission of the lower edge rises to 50%
Cut-off wavelength Wavelength at which the transmission of hhe upper edge drops to 50%
Central Wavelength (CWL) Center of the filter’s passband for which it is primarily designed
Full Width at Half Maximum (FWHM) Spectral bandwidth measured at 50% of the peak transmittance
Transmittance Ratio of transmitted light intensity to incident light intensity
Blocking Strong attenuation of light intensity over a specified wavelength range
Wavefront distortion Deviation of the transmitted wavefront from a reference plane
Parallelism Angular deviation between the two main surfaces of the filter
Glass thickness tolerance Permissible deviation from the specified substrate thickness
Wavelength range Spectral region over which the filter is designed to operate
Coating Applied layer(s) defining the filter’s spectral characteristics
Temperature range Recommended operational limits for ambient or device temperature
Glass thickness Nominal thickness of the filter glass
Optical density Attenuation measure defined as −log₁₀ of transmittance
Transmittance average Average light transmission across the specified wavelength range
Wavelength Wavelength range at which the polarizer specification applies
Transmittance, unpolarized light Ratio of transmitted to incident intensity for unpolarized light
Extinction ratio Ratio of transmitted intensity along the polarizer’s pass axis to that along its block axis
Max. size Largest standard dimension for the polarizer film
Temperature range Minimum to maximum temperature for reliable performance
Substrate Base material on which the polarizing film is applied
Thickness Nominal overall thickness of the polarizer film
Info Unless otherwise stated, all dimensions in this data sheet are in mm

 

Picture of the filter

Schneider-Kreuznach Neutral Density Filter 43 mm ND 106



Transmission of the ND 106 Filter


 

Transmission Data

 

Download Excel

Wavelength (nm) Transmission (%) 
350 0
351 0
352 0
353 0.01
354 0.01
355 0
356 0
357 0
358 0
359 0
360 0
361 0
362 0
363 0.01
364 0.02
365 0.01
366 0
367 0.01
368 0.02
369 0.03
370 0.03
371 0.02
372 0.03
373 0.04
374 0.03
375 0.02
376 0.02
377 0.03
378 0.02
379 0.02
380 0.04
381 0.06
382 0.06
383 0.06
384 0.07
385 0.1
386 0.13
387 0.14
388 0.16
389 0.18
390 0.22
391 0.25
392 0.28
393 0.29
394 0.32
395 0.35
396 0.38
397 0.41
398 0.42
399 0.44
400 0.48
401 0.5
402 0.52
403 0.52
404 0.54
405 0.56
406 0.58
407 0.59
408 0.59
409 0.59
410 0.59
411 0.61
412 0.62
413 0.62
414 0.63
415 0.64
416 0.66
417 0.67
418 0.68
419 0.68
420 0.7
421 0.72
422 0.73
423 0.74
424 0.76
425 0.77
426 0.79
427 0.82
428 0.83
429 0.83
430 0.83
431 0.85
432 0.87
433 0.86
434 0.85
435 0.85
436 0.86
437 0.85
438 0.86
439 0.85
440 0.84
441 0.85
442 0.86
443 0.88
444 0.88
445 0.89
446 0.92
447 0.95
448 0.96
449 0.98
450 1
451 1.04
452 1.06
453 1.08
454 1.09
455 1.12
456 1.15
457 1.18
458 1.2
459 1.21
460 1.22
461 1.24
462 1.27
463 1.26
464 1.26
465 1.28
466 1.28
467 1.29
468 1.29
469 1.29
470 1.28
471 1.28
472 1.28
473 1.28
474 1.28
475 1.26
476 1.26
477 1.26
478 1.26
479 1.25
480 1.24
481 1.24
482 1.24
483 1.24
484 1.23
485 1.21
486 1.21
487 1.21
488 1.21
489 1.2
490 1.2
491 1.19
492 1.18
493 1.2
494 1.19
495 1.17
496 1.17
497 1.18
498 1.19
499 1.18
500 1.17
501 1.17
502 1.18
503 1.18
504 1.17
505 1.18
506 1.17
507 1.17
508 1.18
509 1.19
510 1.18
511 1.17
512 1.18
513 1.19
514 1.21
515 1.2
516 1.19
517 1.2
518 1.21
519 1.23
520 1.22
521 1.22
522 1.22
523 1.24
524 1.25
525 1.25
526 1.25
527 1.26
528 1.27
529 1.29
530 1.29
531 1.28
532 1.29
533 1.31
534 1.33
535 1.33
536 1.33
537 1.34
538 1.35
539 1.36
540 1.36
541 1.36
542 1.36
543 1.38
544 1.38
545 1.38
546 1.36
547 1.38
548 1.38
549 1.4
550 1.4
551 1.37
552 1.38
553 1.38
554 1.39
555 1.38
556 1.37
557 1.37
558 1.37
559 1.37
560 1.36
561 1.35
562 1.36
563 1.34
564 1.34
565 1.33
566 1.34
567 1.33
568 1.32
569 1.31
570 1.3
571 1.3
572 1.3
573 1.29
574 1.28
575 1.27
576 1.29
577 1.28
578 1.28
579 1.26
580 1.26
581 1.27
582 1.28
583 1.27
584 1.26
585 1.26
586 1.26
587 1.27
588 1.27
589 1.26
590 1.26
591 1.28
592 1.29
593 1.29
594 1.29
595 1.3
596 1.32
597 1.33
598 1.33
599 1.34
600 1.34
601 1.36
602 1.36
603 1.38
604 1.38
605 1.38
606 1.4
607 1.41
608 1.43
609 1.43
610 1.43
611 1.45
612 1.47
613 1.47
614 1.48
615 1.48
616 1.51
617 1.52
618 1.54
619 1.54
620 1.55
621 1.56
622 1.57
623 1.6
624 1.6
625 1.6
626 1.61
627 1.63
628 1.64
629 1.65
630 1.63
631 1.65
632 1.67
633 1.68
634 1.68
635 1.68
636 1.69
637 1.71
638 1.72
639 1.73
640 1.73
641 1.74
642 1.76
643 1.77
644 1.78
645 1.78
646 1.79
647 1.8
648 1.83
649 1.85
650 1.84
651 1.85
652 1.87
653 1.9
654 1.92
655 1.93
656 1.94
657 1.98
658 2.01
659 2.03
660 2.05
661 2.07
662 2.1
663 2.14
664 2.18
665 2.2
666 2.23
667 2.26
668 2.3
669 2.35
670 2.39
671 2.42
672 2.47
673 2.52
674 2.57
675 2.63
676 2.67
677 2.73
678 2.79
679 2.87
680 2.91
681 2.96
682 3.03
683 3.11
684 3.17
685 3.24
686 3.29
687 3.37
688 3.45
689 3.52
690 3.58
691 3.65
692 3.72
693 3.77
694 3.83
695 3.91
696 3.98
697 4.04
698 4.1
699 4.16
700 4.23
701 4.3
702 4.36
703 4.41
704 4.46
705 4.52
706 4.58
707 4.64
708 4.68
709 4.74
710 4.8
711 4.86
712 4.9
713 4.95
714 4.98
715 5.04
716 5.08
717 5.14
718 5.17
719 5.21
720 5.25
721 5.3
722 5.35
723 5.38
724 5.4
725 5.44
726 5.5
727 5.54
728 5.56
729 5.58
730 5.62
731 5.66
732 5.7
733 5.74
734 5.77
735 5.8
736 5.83
737 5.87
738 5.9
739 5.92
740 5.95
741 6
742 6.04
743 6.07
744 6.09
745 6.11
746 6.14
747 6.17
748 6.2
749 6.22
750 6.25

Mounts for Industrial Optical Filters

C-Mount

Defined by 1” (25.4mm) diameter and 32 turns per inch pitch, the C-Mount thread is a popular camera mount in machine vision industry. Schneider-Kreuznach offers a C-Mount option for most filters. So filters can go in any C-Mount based mechanics in vision systems.

Another popular application, C-Mounts can easily be used for, is placing a filter in front of the sensor into the camera. The extension of the back flange distance has to be considered for imaging applications.

Key Features of C-Mount Filters:
Fits in C-Mount cameras
Black Anodized Brass

Applications of C-Mount Filters:
To be mounted in C-Mount cameras
Vision Systems based on C-Mount mechanics

Thread Diameter Clear Thickness
Aperture
1'' - 32 25.4 mm 21.1 mm 3.6 mm

 

Filter C-Mount

 

 

SH-Mount

Schneider-Kreuznach offers a variety of mounts with common thread sizes to fit on most camera lens systems. SH-Mount is the standard, when high flexibility is needed. Filters are held by retainer rings. SH-Mounts are extreme robust.

All SH-Mounts have a female and male M-thread, and can be stacked if several filters must be combined.

Key features of SH-Mount Filters:
Stackable
​​​​​Robust
Black Anodized Brass

Applications of SH-Mount Filters:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 29.5 mm 20.8mm 6.4 mm
M 27.0x0.5 31.0 mm 21.8 mm 6.4 mm
M 35.5x0.5 39.5 mm 29.8 mm 6.4 mm
M 37.0x0.75 41.0 mm 31.8 mm 6.9 mm
M 39.0x0.5 43.0 mm 33.8 mm 6.4 mm
M 40.5x0.5 44.5 mm 35.8 mm 6.4 mm
M 43.0x0.75 47.0 mm 37.8 mm 6.9 mm
M 46.0x0.75 50.0 mm 40.8 mm 6.9 mm
M 49.0x0.75 53.0 mm 43.8 mm 6.9 mm
M 52.0x0.75 56.0 mm 46.8 mm 6.9 mm
M 55.0x0.75 59.0 mm 49.8 mm 6.9 mm
M 58.0x0.75 62.0 mm 52.8 mm 6.9 mm
M 62.0x0.75 66.0 mm 56.8 mm 6.9 mm
M 67.0x0.75 71.0 mm 61.8 mm 6.9 mm

 

SH Filter-Mount

 

SN1-Mount

The SN1-Mount was designed for the in machine vision popular M30.5x0.5 thread. With its high clear aperture, vignetting can be avoided, even for wide angle applications. The filter is glued into the mount, in order to secure it against vibrations when integrated into robots or production lines. It is ideal to be used in automated fabrication.

SN1-Mounts have a male and female M-thread, and can be stacked if several filters must be combined.

Key features SN1-Mount Filters:
Maximum Clear Aperture
No vignetting
Stackable
Robust
Black Anodized Brass

Applications SN1-Mount Filters:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 30.5x0.5 32 mm 28 mm 6.5 mm

 

SN1 Filter-Mount

 

SN1-Mount

The SN2-Mount is designed for polarizers and achieves highest possible aperture, avoiding vignetting in machine vision systems. Its unique locking mechanism fixes the correct orientation, even in typical industrial environment. The filters are glued into the mount to secure them against vibrations when integrated into robots or production lines. Ideal for use in automated fabrication.

SN2-Mounts have a female and male M-thread, and can be stacked if several filters must be combined.

Key features:
Rotatable
High clear Aperture
No vignetting
Stackable
Robust
Black Anodized Brass

Applications:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 27 mm 22.7 mm 7.4 mm
M 27.0x0.5 28.5 mm 23.7 mm 7.4 mm
M 30.5x0.5 32 mm 26.7 mm 7.4 mm
M 35.5 x0.5 37 mm 31.7 mm 7.4 mm
M 37.0x0.75 38.5 mm 32.7 mm 7.4 mm
M 40.5x0.5 42 mm 36.7 mm 7.4 mm
M 43.0x0.75 44.5 mm 37.7 mm 7.4 mm
M 46.0x0.75 47.5 mm 41.7 mm 7.4 mm
M 49.0x0.75 50.5 mm 44.7 mm 7.4 mm

 

SN2 Filter-Mount

DH-Mount

Schneider-Kreuznach offers a variety of mounts for polarizers with common thread sizes to fit on most camera lens systems. The DH-Mount is rotatable to adjust polarization axis in the required orientation. Filters are held by retainer rings.

All DH-Mounts have a female and male M-thread and can be stacked if several filters must be combined.

Key features:
Rotatable
Stackable
Black Anodized Brass

Applications:
Mounted on lenses in imaging applications
Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 27 mm 20.8 mm 9.2 mm
M 27.0x0.5 28.5 mm 21.8 mm 9.2 mm
M 30.5x0.5 32 mm 25.8 mm 9.2 mm
M 35.5 x0.5 37 mm 30.8 mm 9.2 mm
M 37.0x0.75 38.5 mm 31.8 mm 9.2 mm
M 40.5x0.5 42 mm 35.8 mm 9.2 mm
M 43.0x0.75 44.5 mm 37.8 mm 9.2 mm
M 46.0x0.75 47.5 mm 40.8 mm 9.2 mm
M 49.0x0.75 50.5 mm 43.8 mm 9.2 mm
M 52.0x0.75 53.5 mm 46.8 mm 9.2 mm
M 55.0x0.75 56.5 mm 49.8 mm 9.2 mm
M 58.0x0.75 59.5 mm 52.8 mm 9.2 mm
M 62.0x0.75 63.5 mm 56.8 mm 9.2 mm
M 67.0x0.75 68.5 mm 61.8 mm 9.2 mm

 

DH Filter-Mount



 

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