The high-quality G Lens optical design incorporates three aspherical lens elements for sharp detail and one Ed (Extra-low Dispersion) glass element that reduces chromatic aberration for outstanding corner-to-corner resolution. This set contains Lens Hood (Alc-SH165), Lens Front Cap (Alc-F49S), Lens Rear Cap (Alc-R1EM), Corel PaintShop Pro 2022, Corel AfterShot Pro 3, Corel VideoStudio Se 2020, and Corel Painter Essentials 7.