Quote:
Originally Posted by casstony
Ron, in case you hadn't noticed, Bintel sells the 30mm UWA/1RPD/BW optik and whatever other names it goes by for $109 new.
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Thats a good price.
The problem with cheap widefields in fast scopes is that the portion of field wider than that of a plossl is inhibited by abberated astigmatic seagul shaped stars.
Sorry but there is no poor mans nagler!
Having said all that, the 30mm UWA is the
least bad of cheapy widefields I have seen. with the outermost part of the 80 degree frield about as bad as the outer 65 degree point on the gso superview. This is at f5.
The 26mm gso kelner is atrocious for off axis abberations, the worst I have seen.