**********Zoom spotting scope with 23mm big eyepiece for comfortable observation; it is suitable for a long time to watch; the vast field of vision can bring the feeling of being immersive feeling; There are wide range of applications; including: architectural design survey; shooting range; outdoor shops; safari; eco-tourism park; university community; natural classroom; design and construction; construction management*****High quality Bak4 glass gets clear and sharp viewing with high contrast; Bak4 is more denser; it can eliminate internal light divergence and chromatic aberrations*****Fully multi layer broadband green film with better light transmission; bright field of vision; true color reproduction balance and less lens reflections for clear and sharp image*****Waterproof spotting scope; IP68 waterproof fogproof can completely prevent dust from entering; it can immerse water for a long time under certain pressure*****Rotating spotting scope body; meets the needs of different angles of obse