Celestron Nature DX ED 10x50 Binoculars - 72335 Diagonals Then the scope is working

Then the scope is working just like a camera lens

Maksutov-Cassegrain telescopes are noted for their higher f/numbers

An Explore Scientific Focal Extender does exactly what the name implies

elegant design

Celestron Nature DX ED 10x50 Binoculars - 72335 Diagonals Then the scope is workingCelestron Nature DX ED 10x50 Binoculars Extra Low Dispersion (ED) objective lenses provide high resolution, high contrast images that are virtually free of optical defects like chromatic aberration (color fringing) Fully multi coated optics deliver maximum light transmission through the optical path Phase coated BaK 4 prisms produce vivid, true to life colors Eyeglass friendly generous eye relief and sturdy, twist up eyecups with multiple stops