Like the smaller 60mm solar filter, the SolarMax 90 can be used on almost any telescope design under 3000mm focal length. However, the larger 90mm aperture increases resolution and allows for the user to view individual sections of solar activity at high magnification and when viewing at full disk the user gets the impression of curvature on the surface.

The extra resolution will provide some stunning views; you haven't seen the Sun until you have looked 'down' through a filament onto an active region. The SolarMax 90 provides consistent and breathtaking h-Alpha views.

All SolarMax series filters are sold in sets. The front mounted SolarMax and rear blocking filter. Almost all telescopes will require an adaptor plate in order to attach the SolarMax, these are available through your dealer.

The SolarMax includes a T-Max de-tuning filter. Some events on the Sun,- notably active flares and coronal mass ejections (CME), are extremely fast moving. If such features occur on the disc of the Sun, their high velocity towards the observer results in their wavelength being Doppler shifted shorter than Ha.