Item Type: Spotting Scope Camera Adapter Tube and T Ring Material: Aluminum Alloy Color: As Pictures Shown Weight: Approx. 206g / 7.3oz Applicable Model: Suitable for M4 M3 Mount ILDC Package List 1 x Adapter Tube 1 x Adapter Ring 1 x Wrench 1Applicable Model: This adapterthread is M42x0.75, suitable for T2 mount lens of camera, and T2 adapter ring to M4/3 mount interchangeable lens digital camera. 2Height and Diameter Adjusting 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. 3Hollow Design: This T mount spotting scope camera adapter tubee adopts hollow design, which does not affect the focusing wheel and the adjustment of the focusing hand wheel on both sides. 4Scope of Application: Equipped with a T2 to M4/3 adapter ring, suitable for interchangeable lens digital camera, and helpful for visual photography. 5Easy to Install: This photographic accessory is simple, practical and easy to install, made of aluminum alloy and can be used for a long time.