Originally Posted by tommymc
If I convert a raw image to jpeg in PS, will it be the same image as what came out of my camera as the large jpeg? The only issue I usually have is adjusting the f-stop up or down a bit. I would like to make all my adjustments in raw and then convert it to a jpeg. I've converted raw images to jpeg to print and printed the same image from the camera and I cant see any difference. Any insight on this would be appreciated. Sorry for the rambling.
The image converted in PS (ACR) to JPG will be different. Why? Because Photoshop ACR is running on a large computer and is a large software program and is highly optimized for maximum control of RAW image conversion. The camera has a very tiny by comparison computer and has only a very limited amount of memory. Plus for, in camera, you have to make all the parameter choices in advance. If you're wrong on any of them, then the JPG will suffer and you have little to work with to correct the mistake.