Bought the dome and just never got out to use it. No scratches or anything on the glass, in fact the dome has never been attached or gone underwater.
4.33'' Acrylic Wide-Angle Dome Port ~for SEL16F28 with Fisheye Converter VCL-ECF1
4.33'' Acrylic Wide-Angle Dome Port ~for SEL16F28 with Fisheye Converter VCL-ECF1