What is the difference between proofs and prints?
The proof is usually not corrected or retouched photograph, sometimes some basic corrections of exposure and color could be made. The print is a final photograph where all the corrections and retouchings are made, some digital effects as well could be applied to increase the impact of the photograph. The proofs are used for initial selection of the photographs, which later will be retouched and manipulated. The main purpose of the proofs is to separate bad images from good ones and to focus only on the good ones.