Coronado SolarMax 40 Dedicated TelescopeThe SolarMax 40 telescope has the same aperture as the P.S.T. but is distinguished by several key factors. The SolarMax 40 telescope comes standard with a With the SolarMax 40 telescope you will see all of the limb detail of the P.S.T. but with enhanced surface features. The SolarMax 40 telescope comes standard with a BF10 blocking filter; this is ideal 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 Fully-integrated Ha telescope 40mm apertureBlocking filter 10f/10 400mm Focal LengthWeight 3 lbsLength 16.75 inchesMounting Rings TMax and travel case included.