What does the Hyperion 24mm come with?
Our listing ships the eyepiece with its soft-leather bag and three dust caps. Baader's specification lists the dust caps as 31.8mm (1.25"), 45mm (2") and 46.5mm (fits over the eyecup), and the folding eyecup sits on the M43 thread.
Can I use filters with the Hyperion 24mm eyepiece?
Yes. The inner connections of the Hyperion 24mm are M28.5 and M48, so it takes 1.25" and 2" filters.
Is the 17mm eye relief on the Hyperion 24mm sufficient for eyeglass wearers?
Eye relief is 17mm. The rubber eyecup can be stored folded down, especially for persons who wear glasses.
What are the M43 and SP54 threads on the Hyperion 24mm used for?
These threads are for attaching cameras directly to the eyepiece for astrophotography. By removing the rubber eyecup, you expose these threads. The M43 thread is primarily used for "eyepiece projection" with DSLR or dedicated astronomy cameras via the Hyperion M43/T-2 ring (#2958080). The SP54 thread is used for "afocal" imaging, where you attach a camera that has a non-removable lens.
Why is the focal length of the Hyperion 24mm not variable like the other models?
The 24mm Hyperion has only one fixed focal length; the technical data and focal length table give no fine tuning ring values for it. No reason is given, so we do not guess one.
What magnification does the Hyperion 24mm give?
Magnification is the telescope's focal length divided by 24. On a telescope of 1000mm focal length it gives about 42x. Exit pupil is the eyepiece focal length divided by the telescope's focal ratio; at f/6 it is 4mm.
Is the Hyperion 24mm parfocal with the other Hyperions?
No. Baader's technical data lists the 5mm to 21mm in the parfocal group and the 24mm outside it, so expect to refocus when changing to or from the 24mm.
Can the Hyperion 24mm be used on a Zeiss spotting scope?
Hyperion 68° eyepieces can be used on Zeiss Diascope spotting scopes with the Baader Diascope bayonet 1.25" adapter (#2454500), and on Zeiss Harpia spotting scopes with the Baader Harpia 85/95 adapter (#2454511).
Is the Baader Hyperion 24mm a good choice for binoviewing?
The winged rubber eyeshield of the Hyperion 68° eyepieces is ideal for binocular use. A binoviewer needs a pair of eyepieces of the same focal length; the body diameter is 58mm.
What is the purpose of the "Classic Undercut" on the Hyperion 24mm barrel?
The slip protection of the Hyperion 24mm is a classic undercut: a groove in the barrel that keeps the eyepiece from sliding out if the clamp loosens.
