Features: brand new and high quality With this adapter, you can use M42 mount large format or enlarging Lens on FUJI X mirrorless camera. Instructions: M42 mount Large format or enlarging lenses with Focusing tube and this Modify lens adapter, use for Mirrorless Camera. Modify lens purpose, Can not focus infinitely when used directly. Ultra thin, 4.5mm thickness only. Made of aluminium. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. Specifications: Material: Metal Suitable for: Lens: M42 mount large format and enlarging lenses.(Lens without focusing function) Camera: X-Pro1, X-Pro2, X-M1, X-A1, X-A2, X-A3, X-A10, X-E1, X-E2, X-E2s, X-T1, X-T2, X-T10. Not suitable for S2Pro / S3Pro / S5Pro DSLR camera or other X-series prosumer digital camera. Package Includes: 1 x Lens adapter note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!