Old Canon SH 28mm/2.8 on SONY E-mont

Modification of Canon Demi 28 was performed few years ago, lens transplantation on SONY E mount was the purpose. In spite of original format of Demi 28, half frame, critical diversion was available even of Leica full frame format as a flower pic shows. On the other hand, Canon SH 30mm/17 lens also on Canon Demi missed on the corners if used on full frame format. 28mm/2.8 might have inferiority on the corner on full frame, still available, cropping resulting 42mm lens would prove enough capability in picture quality, sharpness and resolution works as a standard lens, front and back "Bokeh" are both acceptable with contentment.
Old lens as SH 28mm/2.8 might be, the potentials and performance is sufficient even in modern times. I prefer this smaller shape than ordinary sold pancake lenses.