features 1Application: This adapter tube thread M42 x 0.75 is suitable for T2 mount lens of camera, and T2 adapter ring to mirrorless camera. 2Height, Diameter Adjustable Valve: The height of eyepiece can be adjusted from 67mm to 80mm. The diameter of eyepiece can be adjusted from 41.5mm to 44.5mm. 3Scope of Application: Equipped with T2 for EOSM adapter ring, suitable for mirror less camera, which is helpful for visual photography. 4Aluminum Alloy Material: Made of premium aluminum alloy material, this adapter tube is strong and sturdy, rust and corrosion resistant, ensuring a long life span. 5Hollow Design: The hollow design of the adapter tube does not affect the focusing wheel, and the adjustment of the focusing handwheel is not affected on both sides.SpecificationItem Type: Lens Mount Adapter Ring Material: Aluminum AlloyScope of Application: For EOSM bayonetmirrorless cameraThread: M42 x 0.75 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Sleeve1 x Adapter Tube1 x Wrench