Adjustable diopter settings for single eye viewing?

[25585]

As binoculars and some bino viewers have adjustable diopter settings for eye pieces, are there any such things for single eye viewing that would enable any eye piece to be used with an adjustable setting?

 

[alanjgreen]

Televue state " Your telescope's focuser is used to compensate for your near- or far-sightedness; DIOPTRX™ compensates for your astigmatism."

http://www.televue.com/engine/TV3b_page.asp?id=54

[Louis D]

15 hours ago, 25585 said:

As binoculars and some bino viewers have adjustable diopter settings for eye pieces, are there any such things for single eye viewing that would enable any eye piece to be used with an adjustable setting?

 

Diopter settings are nonsensical for single eye viewing since they are there to compensate for differing distance prescriptions between two eyes on the same person's head viewing at the same time.  You just dial out the distance difference with the focuser in monovision mode when switching viewing eyes.