Camera selection: Smaller Angel Means Smaller Distortion?

Hello, I have one of those cheap desktop blue laser. I can mount the camera however high I want. I am just wondering if smaller angles means smaller distortion, so better calibration results.

A higher camera placement will make calibration easier, within limits. Too high reduces the overall resolution in terms of detail capture. The calibration card, for example, will appear too small if the camera is too high. There’s no need to place the camera any higher than that required to encompass your entire work area/bed.

If the camera angles are poor, the calibration will fail, but the system is quite forgiving as long as the card can be recognized in all four edges and the center. The intermediate positions (corners) provide for fine tuning.

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