finding it very hard to use the DNG format with Photo AI. The files are most of the time double to 4x the size of the original RAW files from my cameras. Some are 6mp vintage cams while others are modern Nikon Z 24mp.
Would love to have the ability to have more compression as some of the files after going to DNG are almost 100MB is size.
A original RAW file is a undeveloped black and white image, not a color image, and because of this its much much smaller, because black and white has no color information.
After you did open a raw file with a software and develope it in any way it will be bigger because the colors have been added to the final image (it does not matter if its a tiff or DNG).