BK-1:
Inner
diameter:8cm
height:9cm
Fit 18-55mm
BK-2:
Inner
diameter:8.5cm
height:13cm
Fit 18-135mm
BK-3:
Inner
diameter:8.5cm
height:15cm
Fit 24-105mm
BK-4:
Inner
diameter:10.5cm
height:16cm
Fit 24-70mm
BK-5:
Inner
diameter:11cm
height:19cm
Fit 70-300mm
BK-6:
Inner
diameter:11cm
height:23cm
Fit 70-200mm