Home›Browse›three-mirror anastigmat🌐EnglishEnglishDeutschEspañolFrançaisPortuguêsTürkçeРусскийالعربيةفارسی中文EntityQ7797269· pop 8· linked from 30 articlesthree-mirror anastigmatSign in to savetype of telescopeAvailable in 8 languagesEspañolFrançaisDeutsch中文العربيةUkrainianفارسیvia Wikidata sitelinks · CC0