Fully Waterproof and Argon Purged | 16mm Focal Length, 68 Degree Apparent Field of View | All internal surfaces/edges are flat black | EMD Enhanced Multilayer Deposition Coatings | Folding Rubber Eyecup

Four-lens telecentric teleextender 5x | Multiplying the effective focal length by: 5x | Fully multicoated design with four lenses | Telecentric optical design for excellent sharpness | All lens edges blackened for maximum contrast

Four-lens telecentric teleextender 3x | Multiplying the effective focal length by: 3x | Fully multicoated design with four lenses | Telecentric optical design for excellent sharpness | All lens edges blackened for maximum contrast

Four-lens telecentric teleextender 2x | Multiplying the effective focal length by: 2x | Fully multicoated design with four lenses | Telecentric optical design for excellent sharpness | All lens edges blackened for maximum contrast

Four-lens telecentric teleextender 2x | Multiplying the effective focal length by: 2x | Fully multicoated design with four lenses | Telecentric optical design for excellent sharpness | All lens edges blackened for maximum contrast

Explore Scientific Nebula Filter 2" H-Beta Range from 478nm to 496nm with peak at 489nm | Transmission 94.5%

Explore Scientific Nebula Filter 2" CLS Range from 436nm to 536nm with peak at 488nm | Transmission 98.3%

Explore Scientific Neutral Density Filter 1.25" ND 0.9 with 13% transmission

Explore Scientific Neutral Density Filter 2" ND 0.9 with 13% transmission

New “multi-dot” reticle design in standard 4.0 degree, 2.0 degree, and 0.5 degree circular patterns that prevents blocking stars in the field | Fits on common “dovetail-style” viewfinder bases which will allow the user to attach the device on almost any telescope without modification to the telescope itself | 1/4 x 20 threaded adapter is built into the base to allow the device to attach onto a variety of devices such as piggyback camera adapters, photo tripods, etc | Smooth body style eliminates sharp corners and reduces snagging | Low power draw provides long continuous operating time

Soft-Sided Telescope Carrying Case - Shoulder Strap - Set of Removable Dividers - Explore Scientific 1 Year Limited Warranty | Designed specifically for the ED127, ED127CF, DAR127 and DAR152

HIGH POWERED AND A LARGE FIELD OF VIEW - The 10x magnification ensures closeup viewing at a distance. At 1000 yards, the field of view is 283ft. The generous 42 mm lens diameter gathers a large amount of light, and the fully coated optics ensure maximum brightness and clarity. | WATERPROOF AND FOGPROOF - This binocular is both waterproof and fogproof making it ideal for outdoor activities near or on water. | VERSATILE - The compact roof prism design is ideal for a wide range of activities including bird watching, hiking, hunting, camping, wildlife observation or even whale watching on a cruise. | QUALITY ASSURED: Manufactured by Bresser and licensed by National Geographic, you can be assured of quality construction and support after the sale. | YOUR PURCHASE HAS PURPOSE: Every purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.