Coronado SolarMax 90mm Ha Filter w/TMax Tuner and 15mm BF

SolarMax 90 - 90mm aperture narrowband Ha Filter with TMax Tuner and 15mm blocking filter. Maximized for telescopes up to 1500mm

SOLARMAX 90:

The SolarMax 90 is the largest aperture H-A filter that Coronado manufactures as a part of our 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 SolarMax 90 must be used with one of three blocking filters, BF 10, BF 15, or BF 30 in order to complete the system.

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

Product Specifications