Feature: 1. Applicable 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. 2. Height 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. 3. Hollow 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. 4. Scope of Application: Equipped with a T2 to M4/3 adapter ring, suitable for interchangeable lens digital camera, and helpful for visual photography. 5. Easy to Install: This photographic accessory is simple, practical and easy to install, made of aluminum alloy and can be used for a long time. Specification: 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