Eyepiece dilemma

[Tiki]

Which eyepiece should i buy? I have a 77mm 1000mm FL (f13) Jap refractor from the 60's which does pretty well with the supplied 0.965" eyepieces. These eyepieces are 6,9 and 40mm respectively and remain slightly dirty and a bit scratched. I am more interested in planets than anything else at the moment.

I was also wondering how much of an increase in performance that I'd be likely to notice. BTW, I have just bought a 0.965->1.25" star diagonal since it would appear that decent 0.965" eyepieces are a bit pricey.

[NGC 1502]

Your long focal ratio telescope (F13) will give good performance with simple eyepieces. It's a big jump in magnification from your 40mm eyepiece to your 9mm, so if it were me, I'd fill the gap with something around 20mm.

The scope should be a great lunar/planetary/double star performer.

Regards, Ed.