User talk:Crouchender2

Recent edit to Petzval lens
Hello. I noticed that you made an edit that introduces praise or promotional language to the Petzval lens article. On Wikipedia, we adhere to a neutral point of view (NPOV) and avoid promotional language or puffery. Please read the NPOV policy page, as well as this page of language to avoid to better understand how to expand this article in a style suitable to an encyclopedia. If you have questions, please see the Help Desk page. Thank you! Telfordbuck (talk) 00:49, 20 July 2017 (UTC)