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Message: <blockquote data-quote="Huang_Lingyun" data-source="post: 1299376" data-attributes="member: 69849">Steve C ,Thank you.Generally speaking, if one brand(such as Hawke, or Promaster, or Bushnell) does not require the OEM factory to design and manufacture binoculars for its own worldwide exclusive ("worldwide exclusive" means that the brand should pay all of the research & development charge or promise a certain order quantity), the OEM factory can supply the similar binoculars for another customer. It seems this rule is also fit for Japanese OEM factories with their sellers. So we can find many similar binoculars under different brands. For exsample, Bushnell Excursion and Vortex Diamonback, Promaster EDs and Hawke Frontier EDs, etc.Best,Huang Lingyun</blockquote>