I have eyepieces ranging from 48g to 1417g! The difficulty is finding a balance point for my telescope which suits all my EPs. This adapter certainly helps. By using this with all my lighter EPs the balance problems are greatly reduced. This adapter surprises you with it's weight (340g, which is what you want. Unlike the adapter which came with my scope it uses a superior compression ring, which is not only kinder on the barrels of my eyepieces but centers the EP (or collimator better. Also, the brass looks much superior to the standard black.