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Old 21-07-2021, 11:38 AM
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gregbradley
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Quote:
Originally Posted by Hans Tucker View Post
According to the link they can make virtually any Focal Length.

E.g. Polychromat 150/840 f5.6 is one option.
That would be better but I imagine the Strehl number suffers.

FSQ130ED got up to about US$14500 or so before it was discontinued so this might be like that if you they supply a flattener.

Greg.
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