Large objective lens diameter for a brighter and wider field of viewMultilayer-coated lenses for bright, sharp imagesSmooth zooming with finger-tip zoom Focal Length:360mmEyepiece:H20MM, H6MMPOSITIVE MIRROR:Positive Mirror1.5X:Diagonal RangeColour Name:Black/GreyInterchangeable Lens:NoModel Number:36050Product Weight:1 kgTripod Mount:YesZoom:Yes