[04Stefan07 (Stefan)]

As my signature states below I have a 130 SLT and Skywatcher Refractor.

- 130 SLT (apeature: 130mm, fl: 650mm)
- Skywatcher (apeature: 90mm, fl: 900mm)

I currently have a 25mm that came with the Skywatcher and a Celestron 9mm X-Cel LX (which I bought after).

A few questions on adding another one or two more eyepiece based on my telescopes.

1) What would be the lowest power I can go to still get use out of the eyepiece and scope?
2) Which other eyepieces (in mm) would be appropriate to add to my collection? I was thinking maybe a 15mm and replace my 25mm with a better one.

Example: 9mm, 15mm, 20mm, 25mm

I use 1.25" and mainly look at the Moon, Jupiter, Saturn, bright stars and eventually nebulae.

I have another thread asking which brand to get but this thread is asking what is a good range of eyepieces to have.

Thanks