The Baader Planetarium HYP-ZOOM is an 8-24 mm Hyperion Clickstop Zoom Mark III eyepiece that includes both 1.25" and 2" barrels. The 2" barrel attaches through an included adapter ring that has standard 2" x 24 tpi SCT threads. The Hyperion Zoom Mark III eyelens barrel has been provided with an M54 thread (covered by the removable rubber eyecups).
A complete system of adapter rings enables cameras to be directly (and rigidly) close-coupled for afocal projection or variably extended for classical eyepiece projection imaging with the T-Adapter and Extension Tubes. A series of 16 threaded rings provides compatibility with just about every digital (CCD/DSLR) and video camera made.
Reviewed by 2 customers
As an amateur astronomer, over the years I have heard that zoom eyepieces are a total waste. This one by Baader Planetarium makes a lie of those old adages: the 8-24 zoom will totally change your mind. First, with my 480mm focal length TeleVue 76, this Baader eyepiece at 24mm serves as a finderscope- I can locate my target easily.Then without fear of losing it as I fumble for another eyepiece, I can simply change magnification by twisting the ring on this one. from 20x to 60x with a simple twist! The Baader's parfocal capability insures perfect focus throughout the range, and each major step is indicated by a soft click. Convenient, effective, a great eyepiece.
This is a note for Coronado PST solarscope owners who plan on using the Baader Hyperion MKIII Zoom with a lightweight camera tripod or Malta mini-tripod. The eyepiece is tremendously large and heavy, closer to the size of a soda can than a film canister, and could easily tip over a small tripod due to weight at normal viewing angles or make it easy to tip over a lightweight tripod due to imbalance. Highly advise to use with a counter-weighted mini tripod or heavier astronomy tripod - then it would be excellent, though without that option: find a smaller eyepiece. Approximate dimensions: 5" x 2" diameter.