The Nature-Trek spotting scope family offers exceptional optical performance in a lightweight and waterproof modern design. A Fully Multi-Coated optical system combined with BAK-4 Porro prisms produce extremely clear and sharp images. The new ultra compact 56mm features barrel focussing with twist-up eye piece, delivering 39x magnification in a scope the size of your hand. Supplied with neoprene stay-on case. Features: Ultra Compact And Lightweight Construction Fully Multi-Coated Optics To Produce Sharp Images Close Focus - See Detail From 13.1ft/4.0m BAK-4 Porro Prisms For Intense Colour And Contrast Barrel Focus To Achieve Ultra Fine Focusing Stay-On Soft Scope Cover For Maximum Protection Twist-Up Eye Cup Digi-Scope Compatible For Use With Your Camera Nitrogen Purged - Water And Fog Proof