User manual SONY VCL-HG0737Y

[. . . ] This Sony VCL-HG0737Y/HG2037Y wide/tele conversion lens is designed for use with the Sony video camera recorder (referred to below as "camera") whose filter is 37 mm in diameter. Do not directly look at the sun through this lens. [. . . ] When the conversion lens is mounted on some cameras, the weight of the lens may make it impossible to fix the lens portion in place. We recommend using a tripod or supporting the lens portion with your left hand. Though resolution has been greatly improved compared with Sony's standard conversion lenses, the peripheral resolution is slightly lower than that of the center. When using the camera with the automatic focus function, the image may be out of focus depending on the type of your camera. if this occurs , adjust the focus manually. When using the camera's PROGRAM AE, the automatic focus does not function in some modes. adjust the focus manually in this case. You cannot focus when the focus switch is set to infinity mode. Do not hold the camera only by the attached lens. When using the wide conversion lens with a flash, a part of the screen may darken in the wide-angle position. [. . . ] Brush off any dust from the surface of the lens with a blower brush or soft brush. Wipe off fingerprints or other smears with a soft cloth slightly moistened with a mild detergent solution. [. . . ]