
Manfrotto 061 is used to mount two Super Clamps back to back, parallel or at one of the following angles: 60ยบ, 120ยบ, 180ยบ etc. Manfrotto 061RA is used to mount two Super Clamps at right angles to each other or at the following angles: 30ยบ, 90ยบ, 150ยบ etc. Both do their job perfectly; Just make sure you have the right one for your needs. If you have both on hand, you can use a variety of angles.