Solar Filters & Telescopes
The 5mm BF-15 is to be used on telescopes with a focal length up to 500mm. The Blocking Filter is not a stand alone filter. It is an integral part of the Coronado design and cannot be used without a SolarMax series filter on the front of the optical system.
UPGRADE the standard focuser to a 2" Starlight Feather Touch Focuser with 2.5" travel draw tube. Includes adapter for use on LS60THa or LS60TCaK.
Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV and/or I light and transmitting light in the desired visual spectrum.
The Blocking Filter is the second element in any Coronado H-Alpha system, it is just as crucial to your safety and the system's performance as the front element. If you are switching to a longer focal length telescope your SolarMax system you can purchase blocking filters separately. The BF-10 to be used on telescopes with a focal length <1000mm. The blocking filter is not a stand alone filter.
The LS35THa dedicated Hydrogen-alpha telescope is the most compact 35mm etalon system currently available. An unobstructed, front mounted, 35mm etalon provides a bandpass of <0.75 Angstroms. Prominences and some surface detail can quickly be viewed thru this very portable single stack system. Add it to an existing system or use as a quick grab and go.
If you think the view through a SolarMax II filter is amazing, you won't believe the incredible contrast and detailed resolution you can have with a Double Stacked SolarMax II filter system.