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en:photo:equipment:canon-ef-50-f1.8 [2011/05/20 21:50] alex [Canon EF 50mm f/1.8 II Lens] |
en:photo:equipment:canon-ef-50-f1.8 [2011/11/10 01:31] alex [LensFun Calibration Data] |
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| ===== LensFun Calibration Data ===== | ===== LensFun Calibration Data ===== | ||
| - | This is my [[http://lensfun.berlios.de/|LensFun]] entry for this lens. The distortion values listed are the default values that are included with the library. Unfortunately, following the [[http://lensfun.berlios.de/lens-calibration/lens-calibration.html|lens calibration guide]], I was unable to get ''tca_correct'' to output values that gave any sort of improvement on the transverse chromatic aberration. I just ended up manually selecting values for first order correction, producing a much better result than I could get from ''tca_correct''. This lens did not appear to need any TCA correction anyway, interestingly enough. | + | This is my [[http://lensfun.berlios.de/|LensFun]] entry for this lens. The distortion values listed are the default values that are included with the library. Unfortunately, following the [[http://lensfun.berlios.de/lens-calibration/lens-calibration.html|lens calibration guide]], I was unable to get ''tca_correct'' to output anything meaningful. Most of the values were far off the scale that ufraw could deal with (ufraw/lensfun wants +/- 0.01 but I was geting +/- 0.5 or more). I just ended up manually selecting values for first order correction, producing a much better result than I could get from ''tca_correct''. This lens did not appear to need any TCA correction anyway, interestingly enough. |
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