The Beastgrip M42-mount Lens Adapter Ring is the perfect solution for any photographer looking to use their favorite M42 lenses on their digital camera. This adapter is made from high-grade aluminum alloy, giving it the strength and durability to stand up to the toughest of conditions. It features an adjustable locking ring, allowing you to easily adjust the lens mount to fit your camera. With its precision machined construction, you can be sure of a secure fit and smooth operation, making it