No other telescope design offers the combination of features and portability as a Schmidt-Cassegrain telescope (SCT). You may not consider it the best for any one application, but it does everything ...

ABSTRACT.I describe a simple new method for collimating a Cassegrain telescope that gives near-perfect correction over a wide field of view. This method was used to collimate the 6.5 m MMT in 2002 ...

HOTECH’s Advanced CT Laser Collimator uses a flat mirror at the eyepiece location, a target placed in front of the telescope, and three lasers to align your Schmidt-Cassegrain telescope. You can ...

Were you lucky enough to get a new telescope for Christmas? If so, I'm guessing that if you're reading this then you may be getting annoyed that you can't see anything through it or you may still have ...

SO far, I have spoken of spectroscopes as spectroscopes -as one of the instruments the improvement of which should be cared for by every student in science. Their applications will come after. As may ...