Optics and optical instruments. Specifications for astronomical telescopes Ingestion-build-51747 design and construct buildings and

design and construct buildings and structures for agricultural applications

NOTE: Attention is drawn to the importance of ensuring that the bolting assemblies are correctly used if satisfactory results are to be obtained

Contents of BS EN 3155-069:

BS EN 61158-5-21 specifies the characteristics of conceptual application layer services suitable for time-critical communications

1  Publicly accessible information

Optics and optical instruments. Specifications for astronomical telescopes Ingestion-build-51747 design and construct buildings and1 Scope This International Standard applies to astronomical telescopes, including finder telescopes, and to their functional specifications. These specifications are restricted to amateur astronomical telescopes, which should be distinguished from hand held or mounted general purpose monocular telescopes.