Edmund Optics Inc. has introduced TechSpec, 5-megapixel telecentric lenses that provide up to 2/3-in. sensor coverage. They also integrate good light-collecting f/6 designs and achieve high contrast at 72 line pairs per millimeter across the full sensor field. The lenses feature a locking iris and focus to prevent unintentional adjustments in high-vibration environments. Available in 1.7×, 0.9×, 0.5× and 0.28× magnifications, they use an image side telecentric design that eliminates illumination roll-off. An optional mounting clamp secures the lenses to benchtop setups.