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Canon T4I - Wont take pictures of pure white paper

Started Feb 28, 2022 | Questions thread
Aoi Usagi Veteran Member • Posts: 3,221
Re: Canon T4I - Wont take pictures of pure white paper
5

As others have mentioned, without contrast, the AF can't lock on. There is also a limit to how close you can auto focus. Are you within the lens' minimum focus distance to take the photo?

If you want to check how dirty the sensor is, just set the lens to F22, minimum focus distance and take a photo of the clear blue sky.

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