Tele Vue - 17 mm Nagler Eyepiece Type 4

Nagler type 4: Common to all type 4 nailers is the adjustable eyecup and a very comfortable view. Even with glasses the full field of vision is visible.
The eyecup can be moved individually until you have the perfect, comfortable view.
The 22 mm and 17 mm nagler type 4 are the only nailer eyepieces which are not well corrected with f/4. Only from f/5 on the stars are point-like up to the edge and these eyepieces are recommended without reservation.
 

Scope of delivery:

• Eyepiece TeleVue Nagler 17 mm
• Dustcover
  

A convincingly good eyepiece for instruments with f/5 aperture ratio