You know what! You're right! I went back and looked at some of the raw files I saved and they are jpeg files. I guess I never really thought about it cause when you photoshop, to brighten or re-size or whatever, it asks you how you want to save it and gives you all the choices. I always chose jpeg not realizing the original was jpeg. So, really, choosing png wouldn't help anyway with clarity. Not that my photos aren't clear and good, I was just wondering if they could be even better!
This is all very interesting information.

