Original Lensbaby Nikon F Mount SLR Camera Lens (LBON) Single, uncoated optical glass element captures images with glowing highlights, subtle prismatic color shifts, and, of course, the trademark Lensbaby graduated blur. Interchangable f/2.8, f/4.0, f/5.6, f/8.0 apertue discs held in place with rubber gasket. All aperture settings included. 37 mm threads allow you to attach Lensbaby Macro Kit lenses, wide angle and telephoto conversion lenses, and other filters and accessories Anodized aluminum components provide an extremely durable design Note: Lensbaby does not communicate electronically with your camera body