Crocoite- Dundas, Tasmania

Both filters were tested under the same conditions with the Science-Surplus spectrometer.
The Horiba filter is more complicated to use. It doubles as a beamsplitter.
  

Omega Low Pass Filter:





Horiba Raman Notch Filter (removed from unit):





Rruff Spectrum:


RRUFFID=R040053

Excerpted ranges:

310.147, 128.158
311.507, 109.289
312.865, 165.964
314.224, 142.297
315.583, 162.726
316.941, 187.223
318.299, 206.221
319.657, 219.088
321.015, 279.603
322.372, 300.060
323.729, 342.553
325.086, 360.932
326.443, 357.448
327.800, 444.854
329.156, 605.193
330.512, 789.556
331.868, 1140.771
333.224, 1364.044
334.579, 1532.355    <<  
335.935, 1374.561
337.290, 1137.704
338.645, 873.739
339.999, 751.955
341.354, 869.809
342.708, 1019.841
344.062, 1199.002
345.416, 1170.217
346.769, 1085.218
348.123, 975.151
349.476, 1050.058
350.829, 1185.899
352.182, 1526.786
353.534, 1687.849
354.887, 1951.271     <<
356.239, 1774.099
357.591, 1756.116
358.942, 1352.770
360.294, 1126.568
361.645, 864.234
362.996, 799.128
364.347, 735.827
365.698, 825.309
367.048, 842.176
368.398, 988.731
369.748, 1276.786
371.098, 1770.288
372.448, 2146.073
373.797, 2191.404     <<
375.146, 1809.143
376.495, 1302.588
377.844, 882.418
379.192, 645.779
380.540, 497.146
381.889, 409.417
383.236, 424.431
384.584, 351.612
385.932, 333.158
387.279, 388.475
388.626, 375.892
389.973, 385.474
391.319, 455.718
392.666, 495.258
394.012, 707.495
395.358, 995.577
396.704, 1080.754
398.049, 1115.140
399.394, 835.414
400.740, 603.424
402.084, 379.945
403.429, 340.581
404.774, 206.714
406.118, 219.642



816.772, 5481.727
818.053, 6090.078
819.333, 6838.471
820.613, 7676.878
821.893, 8655.352
823.173, 9873.777
824.452, 10952.331
825.732, 12570.979
827.011, 14589.666
828.290, 17688.393
829.568, 21707.201
830.847, 27796.043
832.125, 36054.977
833.403, 45313.961
834.681, 54542.988
835.959, 58112.098     <<
837.236, 57091.246
838.514, 48910.473
839.791, 40229.777
841.068, 30949.133
842.345, 25518.566
843.621, 21298.057
844.898, 18207.598
846.174, 16607.205
847.450, 15326.860
848.726, 14666.589
850.001, 14166.371
851.277, 13206.200
852.552, 12314.590
853.827, 11426.449
855.102, 10036.420
856.376, 9186.465