• Aperture: 40mm
• F/L: 400mm
• F/Ratio: F/10
• Bandwidth: <0.7A - <0.5A
• Thermal Stability: 0.005 A/C
• Blocking: Full blocking >10^-5 from EUV to far IR

The Coronado SolarMax 40 telescope has the same aperture as the Personal Solar Telescope but is distinguished by several key factors. The SolarMax 40 telescope comes standard with a < 0.7 angstrom bandpass which results in increased surface detail across the disk. A T-Max attached directly behind the etalon gives you the ability to adjust for Doppler shifted light. Bino-viewers and most imaging equipment will come to focus, sometimes with the use of a Barlow or OCS. These features plus enhanced surface detail make the SolarMax 40 telescope a more versatile instrument with remarkable solar images.

With the SolarMax 40 telescope you will see all of the limb detail of the Personal Solar Telescope but with enhanced surface features. The SolarMax 40 telescope comes with or without a BF10 blocking filter for use with imaging equipment and bino-viewers. The larger blocking filter allows you to extend the focal length without vignetting but does not enhance detail or narrow the bandpass. You can also purchase a second SolarMax 40 filter / T-Max, along with a small adaptor plate, and attach these to the front in order to lower the bandpass to < 0.5 angstroms. This is called 'double stacking' and further enhances surface detail.

The SolarMax 40 telescope comes standard with a clamshell mounting ring and hard travel case. Optional accessories include CEMAX series eyepieces and Sol Ranger sun finder.