The big day’s here: Your first telescope has arrived. You’ve done your research and decided on an 8-inch Dobsonian-mounted reflector, or perhaps a 4-inch refractor, or another model that had a great ...

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 ...

We're excited to announce the addition of Shear-Plate Collimation Testers to our growing catalogue of precision optical components. These new testers are designed to ensure accurate laser collimation ...

In analogy with the electromagnetic case, the main actors necessary for the appearance of both enhanced transmission and collimation in acoustics are the acoustic surface waves (ASWs). There are many ...