80x900EQ astronomical binoculars is a professional refracting telescope focal F11.25 (900).  
There are 2groups 2pieces achromatic refraction type 2x achromatic double mirror, JE100A is standard equatorial portable instrument,light weight aluminum tripod. 80 caliber of achromatic lens gathered the caliber of 70 more than 30% of the optics, makes the details more clearly visible on the moon, the model of 80x900 astronomical binoculars is the ideal choice for beginners.

80x900EQ astronomical binoculars Specifications︰ 
Model: 80x900EQ 
Entrance Pupil Diameter: 80 
Focusing（mm）: 900 F11.25 
Finderscope: 6x30 
Magnification: 36X-675X 
Max Magnification: 675X 
Eye lens: K25mm（36X） /  MH9mm（100X） 
Balow Lens: 3X 
Weight: 12.5kg 
Size: 96.5X38.5X27cm