17mm Hyperion

The Hyperion modular eyepieces from Baader are now a standard in the amateur astronomy business!

Focal lenght: 17mm
Apparent field of view: 68°
Eye relief: 20mm

Effective focal lenght with 14mm Finetuning ring: 13.1mm
Effective focal lenght with 28mm Finetuning ring: 10.8mm
Effective focal lenght with 14+28mm Finetuning rings: 9.2mm
Effective focal lenght with Baader 2″ filter: 14.6mm

(Finetuning rings are sold separately)