Fixed Mega-Pixel Lenses Features • High resolution • Low distortion • Lock screws with securing hex bolt • Iris click stops • Metal body  HM6WI  SM25WI  1/2" 6mm F1.4  1.0 Mega-Pixel  2/3" 25mm F1.4  1.4 Mega-Pixel    SM35WI  SM50WI  2/3" 35mm F2.0  1.4 Mega-Pixel  2/3" 50mm F2.8  1.4 Mega-Pixel