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Extreme eyepieces (anything under 10mm, and especially when you get in the 2-5mm range) are very hard to use, the eye stop (size of the actual illuminated circle) becomes very small. It's like looking through a straw. A few very expensive versions (hundreds each) can fix that, but not anything you're looking at.
A good quality barlow lense will double the magnification while keeping the other characteristics of the eyepiece the same (like, a decent 4mm eye stop size).
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Mike Bradshaw
1980 911SC sunroof coupe, silver/black
Putting the sick back into sycophant!
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