Hello,
Sorry I only mentioned the 10/25mm plossl as they come standard with most startup scopes and a lot of ppl have them already. You can find them fairly cheaply and readily normally because of ppl upgrading, or borrowed from a astroclub member etc.
All you need is a strong light and a magnifying glass, jewelers loupe what ever you can get. The eps suggestion was based on an assumption you'd have the plossls.
Steve
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