1/25/2024 0 Comments Photosphere tripod![]() It's especially recommended with Frauenhofer Achromatic refractors and short focal length ED Doublets, because their optimum performance peaks in this green wavelength by design. The Solar Contrast Booster filter improves performance of any telescope optics such as Refractors, Newtonian reflectors, Maksutovs, Dall Kirkhams, Cassegrains, and SCT's. Why is transmission centred on 540nm wavelength? 540nm is a very desirable wavelength for imaging and observing the sun. NOTE: Do not insert the filter before your Hershel Prism or it will melt, it should be placed just in front of the camera, and it should be screwed directly into your camera 2" nosepiece by means of the M48x0.75mm thread, E.g. Hypercam 2" nosepiece or use an Altair Magnetic Filter holder with 2" filter slider (Search product code starting with "MAGF" and choose the correct threads for your camera). Highly recommended for use with either Altair Imaging-Ready APM Hershel Wedge or Baader Solar Film. This greatly increases the contrast of solar features when viewed with the naked eye, colour or mono camera, revealing more detail around sunspots and granulation (fast-developing solar convection cells) in the solar photosphere. The Solar Contrast Booster works by filtering out UV, IR and visual wavelengths except for a narrow 8nm FHWM green band at 540nm. Do not use this filter without a suitable solar pre-filter in place, because it will permanently damage your eyes or camera! ![]() ![]() For refractors, the filter should be positioned just in front of the camera or eyepiece with a Hershel Wedge in place. 0.024% transmission placed BEFORE this filter. For reflecting telescopes, we recommend Baader solarfilm on the front of the telescope, then screw the filter into a filter holder, camera, or eyepiece. IMPORTANT SAFETY INFORMATION: DO NOT USE THIS FILTER FOR DIRECT SOLAR OBSERVATION! Must be used together with a professional solar filter or Hershel Wedge with Max. For use with Baader Solar Filter or Herschel Wedge. The Altair 2" Solar Continuum filter Enhances sunspots, granulation, and fine photosphere detail.
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