Nitze Ergonomic Side Handle with ARRI Rosett,Camera Cage Handgrip for Left or Right Hand, Up and Down Adjustable,with Max Load 10kg - PA29A

This fits well on my Tilta arms. The rosette is a bit smaller than the Tilta by 2mm but fits the splines as they are industry standard. Very pleased for the money. It's not as good as Tilta but it's not 3 times the price. The upper overhand on the grip takes the pressure off the hand when operating the RS4.

The finishing on this is excellent and feels far more expensive than the price I paid. I own a lot of rig from Zacuto, Shape, Tilta Red Rock Micro and Small Rig and this is my favourite handle I own.The grip, finishing of the non slip rubber and ergonomics feel great in the hand and make holding a stable shot for long periods really easy

When I first got this handle I was thrilled as it feels amazing in the hand and the thumb support is great. Also having the hot shoe mount is super handy! It's nearly the perfect handle, but then after only 2-3 days of use the screws between the rosette have loosened making it a wobbly and awkward handle, I then stopped using it thinking I just needed to find the right alan key to fix it. But when I tried to tighten it wasn't possible, all the screws just got ruined. I'd really love the manufacturer to fix this on their next model, and if possible be sent a new one, or maybe I got a faulty one as a lot of the reviews everyone seems happy.