Difference between revisions of User:Divenal/sandbox
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Also the distance at which ghosting first appears, if you're also measuring that. For me, the ghosting appears in particular directions, so you can concentrate on the gaps on the lines where the ghost image is most-separated from the original. (ie if ghosting happens in a north-east direction, look at the gaps on the lines going north-west.) | Also the distance at which ghosting first appears, if you're also measuring that. For me, the ghosting appears in particular directions, so you can concentrate on the gaps on the lines where the ghost image is most-separated from the original. (ie if ghosting happens in a north-east direction, look at the gaps on the lines going north-west.) | ||
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Yah, we can use files directly from commons :-) Just go to the image in question, click on the "Use this file on a wiki" button at the top, and paste in the reference. | |||
[[File:Astigmatism.svg|Astigmatism]] | |||