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Well, I have read the manuals and all the literature tht came with my stuff. I also have the Dummies guide for photography (which is quite a good book) and I have some good friends who are knowledgable about photography.
I also work in the field - image processing along a sensor pipeline -- and I wrote a simple pipeline myself from the Bayer to the final bmp (lens antishading, dispersion, white balance, demosaicing, sharpening, gamma and contrast) and it produces nice results. I also developed an algorithm on denoising CMOS images that preserves textures and edges. We also develoip stuff at work dealing with extended-depth-of-focus algorithms.
However, with this all, I am still honest enough to realize that I have quite a bit to learn about "practical" things. I respect opinions and since I participate in this group, am very willing to take advise and learn from others.
I really appreciate your comments and I happen to agree with you.