Besides coverage, does anyone have experiences of how the signature differs between Commercial Ektar lenses (Tessar) and the Wide Field Ektar (double gauss) lenses? Especially in similar or equivalent focal lengths covering 5x7 and 8x10. Maximum aperture differences aside, do they render images discernibly differently from each other? Sharpness, quality of out of focus areas, contrast, "atmosphere" etc. Do they have different signature "looks" ...and how would you describe it?

Again, I am not interested in talking about coverage. Just how they compare regarding their rendering signatures.

Thank you.