<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31345822</termId><termName>standard lenses</termName><termType>PT</termType><termNote><![CDATA[ Lenses whose focal lengths are approximately equal to the film format with which they are used. ]]></termNote><termCreatedDate>2026-03-30 20:33:17</termCreatedDate><relation><relationType>UF</relationType><termId>31345827</termId><termName>prime lenses</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31345828</termId><termName>standard lens</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31345823</termId><termName>lenses, normal</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31345824</termId><termName>lenses, prime</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31345825</termId><termName>lenses, standard</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31345826</termId><termName>normal lenses</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31321570</termId><termName>photographic lenses</termName><termType>PT</termType></relation></term>  </Zthes>