Traditional Culture Encyclopedia - Photography and portraiture - Why is Gao Qiao 102 150 so expensive? What's the difference compared with astronomical telescopes of several thousand yuan?
Why is Gao Qiao 102 150 so expensive? What's the difference compared with astronomical telescopes of several thousand yuan?
1 Exquisite workmanship, such as the excellent rigidity of the lens barrel to ensure the stability of the optical axis. 2. It uses fluorite (calcium fluoride) as lens material to minimize dispersion coefficient. 3. It adopts the achromatic technology above apo. 4. Besides chromatic aberration, other aberrations are well controlled. Its picture quality is even smaller than many top lenses. The service in Japan has always been very good, and nothing is a problem after sale.
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