Very good. Full sun visor to protect my 50mm f / 1.4. Fulfilled its role perfectly, is completely forgotten. No problem to accumulate other filters. On the plane definition and quality, I do not have my level, what it brings. By cons, for sure, it takes nothing to the quality of the image. However, keep close to you a soft, it is well within the footprints. ;) I have a Hama 18-200 in 72mm. Same comment about it.