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Old 22-06-2021, 09:58 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
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An older AP 180 F7 for US$24K does seem a bit overexcited.

I had a TEC180FL F7 for many years and it was a fine instrument. Perhaps the AP will perform a bit better in the red channel otherwise the TEC would be hard to surpass.

A 180 scope is large and heavy and a bit unwieldy really. It would need dark skies to shine.

Personally i think 160 is the maximum useful APO aperture. Above that you're best off with a compound scope and go even more aperture.

US$24K gets you a 14 inch CDK or IDK and the AP whilst lovely and nice tight stars would be hard pressed to match that aperture. Perhaps even a 17 inch.

But Roland's products are amazing and his perfectionism is reflected in his work and that is worth a premium just like any premium product does.
What that is worth to you would vary.

Greg.
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