Sagittal Tangential Petzval Terms
I want to clarify these terms in my mind. Erwin Putts tells that an image is a combination of these three. I saw at MTF tests , first two but not the third one. Do all aberrations spread in to these three or does it spread on more on one or two ? How do them to form a combination for better plasticity ?
Is there any computer simulation examples for each image characteristics to understand them better ?
Is there any way to effect each one to create a different combination ? Is there a way to separate each one ?