A range of Hanneman Gemstone Filters is available by special request & quotation. Filters available are :- Ruby Filter Aquamarine Filter,
Tanzanite Filter, SyntheticYellow Sapphire Filter, Emerald & Synthetic Emerald Filter.


35mm Diffraction Grating Filter

35mm Diffraction Grating Filter

Filter, 35mm slide sized glass protected diffraction Gratings with various line resolutions.  Product Details...

£40.00  (excludes VAT where applicable, No VAT on books)



35mm Polarising Filter

35mm Polarising Filter

Filter, 35mm slide sized glass protected polarising filter for general use  Product Details...

£35.00  (excludes VAT where applicable, No VAT on books)



Hanneman Gemstone Filters

Hanneman Gemstone Filters

Hanneman Gemstone Filters are available, price on request  Product Details...

£0.00  (excludes VAT where applicable, No VAT on books)



Polarising Eyepiece Filter

Polarising Eyepiece Filter

Polarising Eyepiece Filter for the Teaching Diffraction Grating Spectroscope  Product Details...

£35.00  (excludes VAT where applicable, No VAT on books)






ORWIN PRODUCTS LTD

Suppliers to
Gemmologists and Lapidaries