For sale is a set of the Olympus ZUIKO DIGITAL 40-150mm F4-5.6 lens and the Olympus MMF-2 adapter. The ZUIKO lens is a Four Thirds mount lens (the often-mistaken M.ZUIKO lenses are Micro Four Thirds mount). Therefore, it cannot be used on Micro Four Thirds mount camera bodies. However, the MMF-2 adapter included in this set converts Four Thirds mount lenses to Micro Four Thirds mount, allowing this ZUIKO lens to be used on Micro Four Thirds camera bodies. The MMF-2 adapter is often sold separately at a high price, so this set with the lens is a great deal. The lens has been tested and is in working order. Optics are free of mold, fogging, and balsam separation. There are slight scratches on the front element when viewed closely, but they should not affect the image quality. The exterior is very clean. Please consider it to be in near-mint condition. The MMF-2 adapter has also been tested and works without any problems. A (third-party) front cap and a rear cap are also included.