Compatible with: 17mm/34mm/51mm Reel needs Technical Camera Lens

Lens fits：HR Alpagon 5.6/23 mm,LB, AU
HR Alpagon 4.0/32 mm, SB17, AU
HR Alpar 4.0/35 mm,LB, AU
HR Alpagon 4.0/40 mm, SB17, AU
HR Alpagon 4.0/50 mm, SB34, AU
HR Alpagon 5.6/70 mm,SB17, AU
HR Alpagon 5.6/90 mm, SB34, AU
Macro Switar 5.6/105 mm Macro   
HR Alpagon 6.3/138 mm, SB51, AU
HR Alpar 5.6/180 mm, SB51, AU

Apo-Helvetar 5.6/75 mm, FPS SB17 
Apo-Digitar 4. 5/90 mm SB34 AU

Instructions：

1. lens with SB17  Reel

2.Needs Lens with SB34 Reel adds SB17 Reel

3.Needs lens with SB51 Reel adds SB17 Reel