Neilvn 135 f2 vs 70-200 zoom f2.8 100mm f2.8 STF , with APD apodization element Grant corban 200mm f2 vr Chan nds 200mm f1.8 Art in motion Miguel Quiles Julia Trotti Slantedlens 600mm f4 Joe Garcia diyphotography Brandon cole From dof simulator: 400mm f2 .8 At subject to camera distance of 7.2m Bokeh 23% 8.4mm 除了 bokeh 的 尺寸大小，bokeh 本身是lemon or cat eye shape Facial distortion of different focal length HKPF 招募的圖片是否PS 把二圖疊制？就自行判斷吧