This lens is huge compared to a normal plossl, so be prepared!! The viewing though is great and being able to zoom from 24 - 8mm is an excellent feature, especially when aligning the scope and centering stars, enabling you to roughly center at 24 and then zoom in to 8mm to get it exact. The only problem I have found is with my 1.25 diagonal where the retaining screws tend to scratch the bottom of the eyepiece when fitting, so it is more at home in a 2" diagonal where the retaining screws do not interfere, (and looks more secure), as it dwarfs the 1.25 diagonal. Certainly beats having to juggle two or three separate eyepieces in the dark (you just know that sooner or later one will hit the ground!)
Baader Hyperion Zoom Eyepiece
Rating (max 5):
5
Quality and Convenience - John
This zoom lens is not the cheapest around but does seem to be of the highest quality. I like the ability not to have to swap out various lenses (on a Celestron 6SE f/10 and a Skywatcher 250PX f/4.7). The flexibility and functionality of the Baader system also means I can easily mount a DSLR or webcam to the zoom lens. I love this kit so much I'm about to buy the Baader Barlow (have already bought a Baader Click-Lock 1.25-inch Eyepiece Adapter with T-2 Thread)
Baader Hyperion Zoom Eyepiece
Rating (max 5):
4
Good quality and versatile - Andrew
Both my 12" f/6 dobsonian and ED120 have this eyepiece in most of the time, and because it's so good optically I never feel the need to use a single focal length eyepiece within its range. However, the field stop is quite soft at it only has 50° at the 24mm setting. Another minor gripe is that the zoom ring is pretty stiff and the click-stops very subtle when zooming out. All-in-all, a good quality, versatile eyepiece for the money. Recommended for scopes f/5 or slower.
