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What makes eyepieces more prone to diffraction spikes
Are the factors that would make one eyepiece more prone to diffraction spikes than another? Just trying to account for some of the differences I'm seeing.
Is it due to EP focal length? Lens design? Blacking out inside the EP?
I'm not even sure it is actually diffraction spikes I'm talking about here. It looks like them, and they are roughly in alignment with the secondary vanes. It happens on the brighter stars. But then, I did get my eyes lasered years ago though Ive never noticed any ill effects from that. I suppose it's possible it shows up at the extremes of astronomical observing, which would make sense given that the culprit is a wide one which maxes out my exit pupil.
Anyone know? Is it my eyes or the EP itself?
Markus
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