Celestron Regal M2 65ED Spotting Scope with TrailSeeker Tripod ED OBJECTIVE LENS: Minimizes chromatic aberration, accurate color reproduction, 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. FUNCTIONAL: Adapter fits any eyepiece from 30 mm to 60 mm in diameter and accommodates many mobile phone models TRIPOD: Sturdy aluminum tripod adjusts in height from 18.9 inches to 70.5 inches and provides perfect support