What is the recommended correction method for large amounts of blue sky in a photograph's background?

In dealing with large amounts of blue sky in a photograph, using a spot meter is a highly recommended method to ensure accurate exposure and color balance. A spot meter allows you to measure the light and color in a specific area of the scene, which is particularly useful when sections of your image, such as a clear blue sky, can lead to underexposure or overexposure in other areas.

With a spot metering technique, you can focus on measuring the exposure from the blue sky, which tends to reflect light differently than other elements in the frame. This helps to balance out the exposure across the entire image. By identifying the exposure from the highlights in the sky, you can correctly adjust your settings to maintain overall image quality without compromising other subjects in the scene.

This method addresses the problem directly and allows for targeted adjustments, making it a practical solution. In contrast, increasing exposure could lead to overexposing not just the sky but also other elements in the photograph, while changing to a warmer filter could alter colors in unintended ways. Adding saturation might enhance the blue but doesn’t address exposure issues or the overall composition effectively. Thus, using a spot meter provides a more precise correction method for a scenario involving large areas of blue sky.