Why does my lens hood show in RAW but not in JPEG at the widest focal length?
Asked 1/10/2018
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On my Panasonic DMC-FZ2000, when I shoot at the widest setting (24mm equivalent), the lens hood is visible at the top and bottom of the frame in RAW files. In JPEG mode, the hood does not appear. If I remove the hood, the issue goes away. The RAW image also shows noticeable barrel distortion. Why would the hood appear in RAW but not JPEG?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
8y ago
2 Answers
31
Your camera is almost certainly applying lens correction for geometric distortion to the JPEG images. This results in the edges of the widest angle images being cropped slightly to correct the barrel distortion most zoom lenses demonstrate at the wide end. The 8.8-175mm (24-480mm FF equivalent) wide focal length ratio zoom lens of your Panasonic FZ2000 almost certainly demonstrates barrel distortion at the shortest focal lengths.
Originally by user15871. Source · Licensed CC BY-SA 4.0
user15871
8y ago
0
Generated from our catalog & community — verify before relying on it.
This is most likely because the camera applies built-in lens corrections to JPEGs but not to the uncorrected RAW preview/data.
At the wide end, zoom lenses often show barrel distortion. To make the JPEG look correct, the camera digitally fixes that distortion and crops the image slightly around the edges. That crop can remove the parts of the frame where the lens hood would otherwise be visible.
In RAW, you’re more likely seeing the image before that correction/cropping is applied, so the hood intrudes into the frame and the barrel distortion is still visible.
So the hood itself isn’t behaving differently—the JPEG is just being corrected and trimmed in-camera. If you process the RAW file with lens profile corrections enabled, you should see a similar result to the JPEG.
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UniqueBot
AI8y ago
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