Baader Hyperion Eyepiece - 17mm focal length - 1.25 "- 68 °

The Hyperion 17mm is a good Deep Sky overview eyepiece with very good field sharpness for very bright Newtonian telescopes (f / 4). For fainter systems, the Hyperion 17mm is a good all-rounder for deep sky at medium magnification.

A very good picture
Baader Hyperion eyepieces offer an imaging performance at an unbelievable price. Even a critical comparison with relatively expensive eyepieces from well-known manufacturers clearly speaks for the Hyperion eyepieces.

Photographic use
In addition to excellent imaging performance in the visual field, the Hyperion eyepieces also offer many photographic opportunities. With auxiliary threads on the side of the eye, you can directly adapt your camera - exactly centered - for optimum image quality.

An eyepiece - three magnifications
And another special feature - you can change the focal length of the eyepiece with the optional Hyperion extension rings, without an additional lens element and thus without loss of quality. From an eyepiece you can get out so three magnification levels.

Insertion diameter 1.25 "and 2"
Another plus - you have 1.25 "and 2" plug diameter available. With it you get the eyepiece to each device - also with scarce Fokallage.

The most important data for visual use:

68 ° apparent field of vision
A good overview and especially pleasant to see. An apparent field of view of this size has proven to be optimal for astronomical observation. Larger visual fields are no longer exploited, on the contrary, often the insight is even more restless.

High sharpness performance
Both on the axis and in the field a high sharpness performance is given. Even bright Newton's from 1: 4 can be equipped with the Hyperion eyepieces.

Very good light transmission and contrast
The Hyperion eyepieces have an excellent multi-coating on all glass-air surfaces. The lens edges are blackened and also the inside of the case is well blackened.

The result is a bright picture, no disturbing reflections and a very good contrast.
No Kidney Bean Effect Wide-angle eyepieces often have a pronounced kidney bean effect. If you wiggle your head a bit, the screen shades very quickly. This leads to a restless observation.

Large-sized lens systems avoid this effect on the Hyperion eyepieces.

Uniform illumination
Another effect due to the sufficient lens size is a uniform illumination to the edge.

Bino - Suitable
The Hyperion eyepieces are suitable for binocular observation. From 56mm eye relief you have no problems getting your nose between the eyepieces. The pleasant look is an additional plus in this area of ​​application.
1.25 "and 2" plug-in diameter The Hyperion eyepieces can be used not only at 1.25 ", but also at 2" plug-in diameter. However, it should be ensured at 2 "zenith levels that the 1.25" sleeve does not hit the mirror.

An eyepiece - multiple focal lengths
When screwing down the 1.25 "sleeve with the lens set, convert the Hyperion to a 2" oversize eyepiece with M-48 filter screw-in thread. You will then receive a much lower magnification. The eyepiece focal length is about 25mm and the field of view 70 °. The eyepiece can be used as a simple overview eyepiece, if you do not put too much emphasis on good edge sharpness.

But also in the other direction, the Hyperion can be "tuned". We offer extension sleeves for the Hyperions which increase the magnification up to 40% (Hyperion Extension Ring Hyp Ring 14 and Hyp Ring 28).

The most important data for photography:

Easy Adaptation of Cameras
Each Hyperion has a M43 x 0.75 and an M 54 filter thread on the side of the eye.

We offer virtually all adaptations to T-2 or to the filter thread of your lens.

Also suitable for heavy cameras
The eyepiece housing is solid, made of metal and the threads are precise - even heavy cameras can be fixed well by the screw.

A large usable field
The eye lenses of the Hyperion eyepieces are designed for a maximum field.

This significantly reduces edge shading on digital cameras without interchangeable lenses.

Delivery:

Each Hyperion eyepiece comes in a solid cardboard box.

Additionally are:

Cloth bag
A sewn cloth bag guarantees protection for the eyepiece over many years.

Foldable eyecup
So that the eyepoint for observers with or without glasses can be optimally adjusted

Dust Cover Caps
Each eyepiece comes with two dust caps for best protection