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Black Knight (22mm) vs Denk standard/Earthwin

Started by cysmarc, 10/18/2009 08:01AM
Posted 10/18/2009 08:01AM Opening Post
Does anyone know the optical quality (1/4 wave, 1/8 wave etc) of the Siebert Black knight 22mm ca Binoviewers. Also has anyone compared them to the Denk standards or Eathwins?
I know that the ca is smaller on the Siebert but other than that is the optical quality in the same league?
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