metrogon造句

• The new lens quickly replaced the Topogon and Metrogon as the standard lens for aerial photography and photogrammetry.
• The most common Metrogon lenses have a f number of 6.3 and a focal length of 6 inches.
• It is not certain whether Bausch and Lomb incorporated their own design instead of the Zeiss design when producing lenses under the Metrogon name later on.
• For this reason, it is said that the Metrogon is a US version of the popular and very similar ( if not identical ) Topogon design by Carl Zeiss.
• "' Topogon "'is a wide field ( originally 100 degrees field of view ), symmetrical Zeiss Carl FA . Lenses produced under the name Metrogon also cite the US patent of the Topogon design.