If you need to get closer to subjects but are restricted by your lenses MOD (Minimum Object Distance), Close-Up Lenses by Midwest Optical thread onto the lens and allow the camera to move closer to the subject while maintaining focus and achieving sharp magnification. Each set consists of +1, +2, and +4 Close-Up Lenses that can be stacked together for increased magnification power. The close-up lenses are available from stock and mounted in threaded, black anodized aluminum rings, sizes M25.5-M62.
Midwest Optical Systems
