Eyepiece crisis (trivial)

[azrabella]

Can any one of you wise people recommend a reasonably priced alternative to the Nirvana 16mm eyepiece? Whilst fine optically, I just cannot stand the ultra wide 82 degree field. I also find that it does produce kidney beaning due to its relatively tight exit pupil. I can work around this issue by extending the eyeguard somewhat. Trouble with this is that I lose the field stop (about 85/90% fov). I do love a sharp field stop.

Ideally I am looking for a something between 15 and 19mm (fov ideally around 65/70 degrees) to replace it with. But do bear in mind I'm on a limited budget.

Any advice warmly welcomed.

[Ricochet]

15 or 18mm StellaLyra ultra flat field if £109 is within your budget?

[Mr Spock]

Strange, I have the 16mm and see no kidney beaning at all. 

Still, the UFF is a good eyepice and may suit you better. 

[azrabella]

I have been looking at the UFF's and it seems that the Svbony SV190 18mm Ultra Flat is a clone of the APM/Stellalyra eyepieces, at least according to the specs - and cheaper too. Might give that one a try.