Coronado Solarmax Filter Kit with 90 H-Alpha <.7A, BF-10 Blocker & T-Max Tuner for Telescopes with focal lenghts under 1000mm

The SolarMax 90 is the largest aperture H-A filter that Coronado manufactures asa part of their standard filter line. For those with aperture fever this is a must have. Its 90mm aperture and <0.7A bandwidth provide very high resolution and result in unsurpassed views of the finest surface details and prominences when mounted on a good quality telescope. This filter is threaded to attach directly to the front of the TeleVue 101, 102, and Genesis but will work on any quality telescope.

The Advantage of the T-Max:Some events on the Sun,- notably active flares and coronal mass ejections (CMEs), 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. If the velocity is high enough, this wavelength could be outside the passband of the filter and the feature would not be observable. The T-Max allows the user to de-tune the SolarMax slightly to bring such phenomena into better visibility. The T-Max fits between the SolarMax and its adaptor plate. A simple rotary wheel movement accomplishes the tilt necessary to move the passband of the filter. Because of the filter's position at the front end of the telescope, this does not compromise the performance of the filter nor limit the Ha field of view as is the case with rear mounted filters. Users of the TMAx describe its enhancement of their Solar observing.

This Package is maximized for telescopes 500m-1000mm Focal lengths

Please Note: We are only authorized to sell Coronado Products in North America