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zebra:(1) PTB: 3rd order Petzval blur 9A$m$ 只有場(chǎng)曲時(shí),在成像面形成圓斑之尺寸,應(yīng)該是半徑。 h<l1U'Bn7 但場(chǎng)曲有正負(fù),此值也可以是正或負(fù)。(2) PTZ: Petzval surface curvature ^ c%N/V \ ....... (2012-05-12 00:45) :d,^I@]
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