Hanneman Auxiliary filter set
adressing all the problems with new bulbs and the different wavelength, new synthetics and new treatments to the stones, the set includes the Standard Reference Color Filter", the "Red Filter for Crossed Filter Test", the "Chromium Fluorescence Filter", the "Yellow Synthetic Sapphire Filter", the "Cape Line Color Filter for Spectroscopy". All are easy to use. With detailed instructions."
adressing all the problems with new bulbs and the different wavelength, new synthetics and new treatments to the stones, the set includes the "Standard Reference Color Filter", the "Red Filter for Crossed Filter Test", the "Chromium Fluorescence Filter", the "Yellow Synthetic Sapphire Filter", the "Cape Line Color Filter for Spectroscopy". All are easy to use. With detailed instructions.
| shipment-weight, NOT netto weight (kg) | 0.200000 |
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