Quote:
Originally Posted by erick
These are designed to reduce glare for daytime viewing. They reportedly just reduce the light collected in astronomical situations. You should be look for FMC only - fully multi-coated on all surfaces.
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Agree with Eric - in addition, ruby coatings can mask optical imperfections and thus allow wider manufacturing tolerances on the optics.
By the looks of it these binos are manufactured by Kunming Optical Co. - as are many others marketed under various different brand names. By my own experience their performance can vary widely...
And yes, they are cheap indeed... it may sound harsh, but you will probably get what you pay for.
