The Celestron Regal M2 100ED Spotting Scope is a top-performing spotting scope. Day or night, the Regal M2 is optimised to provide the sharpest images available. They are great for bird watching, nature observing, long distance viewing and casual astronomical observing. The Regal M2 Series boasts a magnesium alloy body, decreasing the overall weight of the spotting scopes by more than 14% when compared to the previous model. The new M2 scopes also include an upgraded dual focus mechanism, which allows you to bring your subject into focus twice as fast. The Regal M2 is fully waterproof and nitrogen-purged to prevent fogging. It comes in green, and has a carrying case so you can bring it with you anywhere. You can attach your camera to the Regal using a T-Ring and the included T-Adapter to produce stunning images. Features - ED Objective Lens: Minimizes chromatic aberration, accurate color reproduction, increased resolution and contrast. - XLT Coatings (Fully Multi-Coated Optics): Proprietary XLT lens coatings maximize light transmission through the optical path for brighter images and increased resolution and contrast. - Magnesium Alloy Body: This material is strong and durable, but lighter weight than traditional aluminum alloy housings. - Dual focus: Course focus for rough adjustment and fine focus for detailed adjustment. New quicker focusing mechanism. - Rotating tripod mount with detents: Place the orientation of the eyepiece in the best viewing position for application. - 22-67x Zoom Eyepiece: Adjustable magnification, giving you a wide field of view for general viewing and detailed up close viewing when needed. Twist-up eyecup for correct positioning of the user\'s eyes for comfortable viewing with or without eyeglasses. - Standard 1.25\" eyepiece mount allows a variety of astronomical eyepieces to be used with the spotting scope. - T-adapter ring included for easy 35mm/digital SLR photography. - Sliding sunshade with sighting line keeps out stray light and keeps moisture off of the objective lens. Sighting line aids in finding the subject you want to bring into view. Specifications Exit Pupil (mm) 4.5-1.5mm mm (0.18 in) Eye Relief (mm) 20 mm (0.79 in) Prism Glass (Type) Bak-4 Apparent Field of View 1.9-0.9 deg Linear Field of View (@1000 yds) 100-47ft / 33-16m Relative Brightness 20 Accepts filters No Weight (oz) 73.5 oz (2084 g)