My misunderstanding of this group and its philosophy had a negative consequence in my own photography. For this group sharpness was a chief objective and they claimed to find it in the smallest apertures available. What they were also working against were diffused focus lenses which were very popular in the early years of this century. What I have subsequently discovered however is that many of the staight lenses available available to me are actually sharper at f16 or f22. My 127mm ektar is noticeably sharper slightly open. But, not understanding this and following the dictates of this "f64 philosophy", and the misteaching of "beginning" photography teachers I shot closed down. In this case a little knowledge was truly ignorance. If sharpness is important test lenses, don't just go with received wisdom. So now when I seek the aridity of sharpness I seek it at f22. Otherwise I use an old dallmyer lens that at wide apertures allows a fuzzy life inside.