jpf***13: 12-1/50s_f=22(hyperfocale)
jpf***13: 10-1/50s_f=22(inf)
jpf***13: 11-1/50s_f=22(inf)
jpf***13: 08-1/200s_f=16(12m)
jpf***13: 09-1/100s_f=16(infinity)