German product exactly meets my requirements. Collage is perfect, the thickness of 0.5 mm makes its almost invisible presence. Finally mineral glass eliminates the risk of micro-scratches that after many wiping observed on plastic models, so ensured permanent transparency. In addition the glass is treated as a multilayer filter. Only risk, the glass may break under the effect of a major shock, but the finding with an EOS 7 D 6000 photos and necessarily shock, no problem encountered .. Personally quality / price.
