Coronado - SolarMax 90 Ha Filter with BF15 and TMax Tuner

$ 5320.00 Reg.$ 6699.00 SAVE $ 1379.00

SM90_15

Coronado - SolarMax 90 Ha Filter with BF15 and TMax Tuner

Like the smaller 60mm 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 from Coronado or 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. 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.

SolarMax 90 can also be paired with a second SolarMax 90, second T-Max and an interface adaptor.
This will reduce the bandwidth of the 90mm filter system to <0.5A and will greatly increase the
contrast of the image. This addition is priced at $4,625.00. Be aware this creates a very top
heavy set up and we recommend the use of a Coronado internal module to narrow the bandwidth
instead of double stacking two 90mm filters. We recommend this configuration with the Coronado
MaxScope due to the optimal design of this telescope allowing effective use of a double filter
system. We make the internal module for a range of popular telescopes and will provide that
information on request. Installing a module is not a permanent alteration to your host telescope.
Not all SolarMax filters will match in this configuration and it is recommended that you send your
filter to Coronado to have this work done.
	
Coronado will not guarantee the performance, safety, or honor the warranty of any telescope being
used with a non-Coronado adaptor plate
	
Product Specifications

Aperture: 90mm
F/L: N/A
F/Ratio: N/A
Bandwidth: <0.7Å - <0.5Å
Thermal Stability: 0.005 Å/C
Blocking: Full blocking >105 from EUV to far IR

	

90mm aperture narrowband Ha filter with TMax tuner and 15 mm blocking filter. Maximized for
telescopes under 1500mm FL<.7A bandwidth.