Remarks to the article: New Light on the Invention of the Achromatic Telescope Objective

TL;DR

This paper reexamines the historical development of the achromatic telescope, analyzing Lomonosov's 1761 observations and uncovering inaccuracies in early lens manufacturing descriptions.

Contribution

It provides a detailed analysis of the original telescope used by Lomonosov and clarifies misconceptions about the manufacturing process of early achromatic lenses.

Findings

Identified significant faults in the historical description of lens approximation methods.

Reconstructed the likely manufacturing process of early achromatic lenses.

Enhanced understanding of 18th-century telescope technology.

Abstract

The article analysis was carried out within the confines of the replication project of the telescope, which was used by Mikhail Lomonosov at observation the transit of Venus in 1761. At that time he discovered the Venusian atmosphere. It is known that Lomonosov used Dollond 4.5 feet long achromatic telescope. The investigation revealed significant faults in the description of the approximation method, which most likely was used by J. Dollond & Son during manufacturing of the early achromatic lenses.