@rbalzan79: Thanks for the

RE: RE: Converging-converging lens arrangement in the optical system of a refracting telescope

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RE: Converging-converging lens arrangement in the optical system of a refracting telescope

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2023-06-29 23:53

Thanks for the valuable support Hive account@stemsocial community.

2023-06-29 23:53

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@rbalzan79: Thanks for the