Lunt Solar Systems is a manufacturing and sales facility located in Tucson, Arizona. Lunt Solar design, fabricate, assemble, and test solar telescopes and solar filters. Whether you are looking for a dedicated solar telescope or a solar filter for attachment to you own astronomy telescope, we can help.  http://www.lunt-solar-systems.com/
			Daystar Filters, the academic standard in narrow bandpass astronomical solar filters. For decades, professional observatories and universities worldwide have counted on the superior quality and performance of DayStar filters. http://www.daystarfilters.com/
			SolarScope, manufactures hydrogen-alpha filter systems for observing the Sun. With one of our filters fitted, the true dynamic majesty of our nearest star is revealed in its full glory. From complex looping magnetic fields to dark filaments and arching prominences, a Solarscope hydrogen-alpha filter will bring your view of the Sun to life. http://www.solarscope.co.uk
			Coronado, has been developing ultra-narrowband filters and the associated technologies for well over 40 years. http://www.coronadofilters.com/index.html
			Shelyak Instruments designs, manufactures, and distributes scientific and educational instruments and associated services. It's objective is to develop spectrography within the astronomical community, for leisure and educational purposes. http://www.shelyak.com/
			New from Denkmeier, the Spectrum 60 Upgrade for your PST! Increases objective aperture by 50% for substantial gains in resolution. Up-sizes your blocking filter by 100% from 5mm to 10mm for a brighter, wider field to accommodate the larger and more detailed image created by the new 60mm F/10 S-60 objective lens! It really works!!  https://www.denkmeier.com/
			Questar, Industry leaders in nature, science, surveillance and astronomy.  http://www.questar-corp.com/spectro1.htm
			Solar Scope, inspired by a classic do-it-yourself means of observing the sun: using a pinhole camera to project a solar image onto a sheet of white paper. In the case of the Solarscope, the sun is aligned with an orange tube that resembles a flashlight. http://www.solarscope.com/us/index.us.html