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Junior Member
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引用:
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作者blair
計算攝影是單眼相機的禁區
手機那種嚴重介入的計算攝影放在單眼上絕對會造成巨大的爭議
所以廠商是把算力放在對焦等性能上
會講要把計算攝影用在單眼就⋯
手機因為使用對象是大眾且本身光學性能就有限
所以計算攝影絕對必須
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計算攝影不只 HDR 這種，
鏡頭失真修正也算吧。
https://www.canon-europe.com/pro/in...ns-corrections/
In-camera lens corrections
Bing 翻譯
引用:
Digital technology provides the ability to adjust images in-camera or on a computer after capture. One area in which this can prove useful is in applying lens corrections to optimise optical performance.
數字技術提供了在拍攝后在相機內或計算機上調整圖像的能力。事實證明，這很有用的一個領域是應用鏡頭校正以優化光學性能。
When lenses are designed, a balance must be sought between the available optical materials and the design aspirations for the lens, with different optical, mechanical and electronic solutions being considered. In any case, it is fundamentally impossible to make a perfect lens – so, based on its design, every lens will exhibit a greater or lesser degree of optical irregularities. Typically, these manifest themselves as vignetting, where the corners of an image are slightly darker than the centre as a result of light fall-off, and chromatic aberration or colour fringing along high-contrast edges, where the lens has been unable to focus different colours or wavelengths of light to precisely the same point.
在設計鏡頭時，必須在可用的光學材料和鏡頭的設計願望之間尋求平衡，同時考慮不同的光學、機械和電子解決方案。無論如何，從根本上說，製作完美的鏡頭是不可能的——因此，根據其設計，每個鏡頭都會或多或少地表現出或多或少的光學不規則性。通常，這些表現為漸暈，即由於光線衰減，圖像的角落比中心略暗，以及沿高對比度邊緣的色差或色邊，即鏡頭無法將不同顏色或波長的光聚焦到完全相同的點。
Electronic corrections can be used to address these issues in-camera, but more importantly they can be incorporated into the lens design process itself in order to deliver even better image quality.
電子校正可用於在相機內解決這些問題，但更重要的是，它們可以整合到鏡頭設計過程本身中，以提供更好的圖像品質。
The process is seamless when using EOS R System cameras and RF or RF-S lenses, which are designed with in-camera electronic Distortion Correction. The speed of the RF mount means the preview you see in the EVF or on the camera's rear screen is displayed with corrections already applied. What's more, most image editing applications will understand the lens data that is embedded in the image and display your images with the corrections applied, so editing is also a seamless experience.
使用EOS R系統相機和 RF 或 RF-S 鏡頭時，該過程是無縫的，它們設計有相機內電子失真校正功能。RF 卡口的速度意味著您在 EVF 或相機背面螢幕上看到的預覽在顯示時已應用校正。更重要的是，大多數圖像編輯應用程式都會理解圖像中嵌入的鏡頭數據，並在應用校正後顯示您的圖像，因此編輯也是一種無縫體驗。
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