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Fixed focal length, 68° field of view – ease of view even at high magnifications!
High quality Phantom Group-Coating in Zeiss class for complete freedom from reflections with maximum contrast

1¼” and 2″ barrels included, thus variable focal lengths
We here at Astro Dog love this product. Its incredibly well thought out. It can do almost anything. You can connect to so many things. It’s true modularity often is only appreciated later. It even comes with a 1.25″ and 2″ adaptor sleeves, so it works natively as both a 1.25 and 2″ eyepiece. We provide a brilliant product – at a great, consistent price, delivered to your door with free insurance for peace of mind. What’s not to love? Let us tell you a bit more about this eyepiece.

Most telescopes are supplied with one or two simple eyepieces in the set, which do not exploit the performance of the optics. Moderate contrast and sharpness and small field of vision quickly spoil the fun of the sky observation. With Hyperion eyepieces you get everything out of your telescope! They are suitable for photo! Keep your Astro eyepiece impressions forever by connecting the cameras and camcorders at the Hyperion! You can distinguish between the series with “Prime lenses” f = 5 mm, 8 mm, 10 mm, 13 mm, 17 mm, 21 mm, 24 mm, the two great eyepieces aspheric 31 mm and 36 mm, as well as the Hyperion zoom eyepiece with infinitely variable focal length of 8 mm to 24 mm.

The Hyperion eyepieces have above (“eye-side”) two system thread. To expose them, either the eyecup or the large thread protection ring must be removed. For one, it’s an M43 thread and continue to a second with SP54 thread; the M43 thread (system thread 1) accessories, E.g. for the normal eyepiece projection is used for connection of T2. A M34 on T2 transition ring (Hyperion M43/T-2) is to switch threads between them (known as afocal projection), the thread SP 54 (system thread 2) is used for connecting digital cameras or camcorders, where the lens can not be removed.

A variety of additional Hyperion focal lengths can be obtained by using our 2″ fine tuning extensions rings 14mm and 28mm, or even with our 2″ eyepiece filter set. Thus an eyepiece of 5mm focal length can be converted into one of 2.6mm focal length – without loss of sharpness – above all, because no additional lenses are introduced into the bean, which is unavoidable when using a Barlow lens. Also you can of course astronomical 1¼” eyepiece filters in the 1¼” screwing the eyepiece barrel.

Further focal modification there are tweaking our rings (FTR) with 14 – and 28mm length. The different possible focal lengths when removing the first lens group, and in combination with filters and fine tuning rings can be found in the table above.

Due to the wealth of functions, there is the Baader Hyperion eyepieces own, 6-page instruction manual to explain the variety of connection options of cameras and all the possibilities of the focal length fine tuning.

Detailed Specifications:

See Baader Website for specific specifications for your selected specific eyepiece