Field flattener lens - Type of lens used in binoculars and astronomic telescopes. Article “Field flattener lens” in English Wikipedia has 19.9 points for quality (as of July 1, 2025). The article contains 4 references and 5 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 1.05 points.
Since the creation of article “Field flattener lens”, its content was written by 21 registered users of English Wikipedia and edited by 21 registered Wikipedia users in all languages.
The article is cited 14 times in English Wikipedia and cited 14 times in all languages.
The highest Authors Interest rank from 2001:
The highest popularity rank from 2008:
There is 1 language version for this article in the WikiRank database (of the considered 55 Wikipedia language editions).
The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).
| Best Rank | English: #887675 08.2013 |
Global: #1569078 08.2013 |
| Best Rank | English: #194555 01.2011 |
Global: #476106 08.2008 |
On 5 March 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Iran, Ali Khamenei, 2026 Iran war, Jeffrey Epstein, Kurds, Strait of Hormuz, Yakovlev Yak-130, Donald Trump, Azerbaijan, Kristi Noem.
In English Wikipedia the most popular articles on that day were: Markwayne Mullin, Kristi Noem, 2026 Iran war, Ali Khamenei, Lou Holtz, Men's T20 World Cup, Iran, IRIS Dena, Corey Lewandowski, Deaths in 2026.
The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information
$$Quality=1/c∑↙{i=1}↖c nm_i-RS=1/5(5.56+3.25+0+35.71+60.12)-1.05$$
where:
The results of the calculations may be slightly different because of rounded values of normalized metrics in formulas
