Timeline for How does a sensor cause vignetting?
Current License: CC BY-SA 3.0
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| Oct 15, 2013 at 19:22 | history | edited | Kaushik Ghose | CC BY-SA 3.0 |
Expanded answer and fixed typos
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| Oct 15, 2013 at 19:07 | comment | added | Kaushik Ghose | It is both. Vignetting occurs due to the lens. The lens has an 'image circle' which is designed to match the size of the film/sensor (which is why on FX cameras DX lenses vignette a lot). For digital cameras there is additional vignetting occurring due to the senssor. The sensor vignetting occurs because of the geometry of the sensor. Apparently camera manufacturers know the characteristic of the sensor vignetting and correct for this using software. What I don't know is if the raw files will have the correction built in or not. That's actually a good second question to put up! | |
| Oct 15, 2013 at 19:03 | comment | added | Esa Paulasto | But how do they overcome this issue? Is vignetting really not a lens characteristic at all, but in the sensor design? | |
| Oct 15, 2013 at 18:54 | history | answered | Kaushik Ghose | CC BY-SA 3.0 |