50mm · f/2
The Lensbaby Double Glass II is a 50mm f/2.5–f/22 optic for Lensbaby's Optic Swap system, offering a central sweet spot of focus with dramatic blur. Its metal barrel and built-in 12-blade aperture improve build and handling over the original. Optical strengths include creative blur and compatibility with magnetic aperture disks, but the sweet spot is less sharp toward the edges and results are similar to the Sweet 50. It suits photographers seeking mindful, creative effects and who already own a compatible body.