Hi Luka,
Hmmm, not sure about this one, I have seen the same thing, I DONT think that the Black Diamond reflectors are anything special as the SWFLEX Dobs have the same colour scheme (metallic black automotive finish) but this is just a "branding" statement by Tasco/Skywatcher to elevate their status of product away from the white and blue tubes.
Its too far to assume that BD = ED, it doesnt!
Unless you are buying an ED FPL53 glass refractor, all you are getting is standard Skywatcher mirrors in a sexy new tube.
This is the case for the SWFLEX dobs and therefore I assume the same for the other reflector and refractor BD series, UNLESS its shown as a BD 80ED etc. with ED being the key point.
Still, having a BD-N200 for only $399 is a tempting upgrade from my 130mm blue tube OTA. hmmmmm?
Cheers
Chris
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