Preview Image Size

Typical Preview thumbnails are not large enough to allow you to judge the quality of an image. You need a larger preview window in order to correctly judge image sharpness, contrast, saturation, and color. ACR/Bridge, Capture One, RD, and several other programs provide preview images that are large enough so you can make an initial judgement regarding the quality of your images. Preview images should have at least the same resolution as your monitor.

A real-time preview of image corrections saves time during the workflow, but large preview images do use more disk space. You can set your program preferences to delete preview images after a certain period of time, but saving preview images permanently saves time and improves overall performance. Preview images are usually saved in a compressed JPEG format. Deleted preview images have to be regenerated from RAW image files, which takes time and requires a lot of computing power for large collections of images.

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