1、1.25 inch diameter T adapter, suitable for all standard 1.25 inch telescopes and microscopes. 2、T2 T ring adapter, useful accessory that allow you to connect for Samsung NX mount cameras to telescopes, camera adapters and other astronomical photography accessory. 3、Extension tube suitable for all standard 1.25 inch telescopes and microscopes. 4、Using method, first screw extension tube into adapter ring, then install extension tube into camera body, finally connect to the telescope/microscope. 5、Ring adapter cannot automatic focusing, adapter ring has no electrical connection and requires manual aperture and focusing settings. Condition: 100% Brand New Item Type: 1.25 Inch Extension Tube Kit Material: Alloy Color: Black Interface: 1.25 Inch,T2, M42*0.75mm, NX Fitment Telescope: For T2 Mount Telescope Fitment Camera: For Samsung NX Mount Camera Weight: Approx. 193g 1 x Extension Tube 1 x Adapter Ring Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.