<?xml version="1.0" encoding="UTF-8"?>
<!--
  sitemap.xml for www.optics-online.com
  Sunex, Inc. — Carlsbad, CA
  Last updated: 2026-04-21

  Deploy at: https://www.optics-online.com/sitemap.xml
  Reference from: robots.txt (already included)
  Submit to:  Google Search Console, Bing Webmaster Tools

  NOTE ON PRODUCT DETAIL PAGES (/Detail.asp?PN=...):
  This file contains all STATIC pages. Product detail pages
  (~350+ SKUs) should be generated dynamically from NetSuite.
  See the accompanying README or append a <sitemapindex>
  reference to sitemap-products.xml once generated.
-->
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
                            http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

  <!-- =========================================================
       HOMEPAGE
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>

  <!-- =========================================================
       M12 / S-MOUNT LENS CATALOG
       Highest commercial-intent pages.
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/dsl.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_all.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_1nch.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_half.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_1_2.3.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_1_2.5.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_third.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_1_3.2.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_quarter.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_fifth.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_fisheye.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/dsl_fovea.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- =========================================================
       ACCESSORIES
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/cmt.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/irc.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/lpf.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/win.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- =========================================================
       DESIGN TOOLS & CALCULATORS
       HIGH SEO PRIORITY — specifier traffic magnet.
       Strategy: these pages must be ungated and indexed.
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/wizards.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/ccdcmos_lens_wizard.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/search_imager.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/FOVcalc1.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/DepthofFocus.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Image1.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/MTFsim.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/DISsim.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/designer1.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- =========================================================
       APPLICATION / SOLUTIONS PAGES
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/Solutions/Solutions.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Solutions/auto_lenses.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Solutions/finite.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Solutions/CompactMobile.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Solutions/video.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Solutions/security.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Solutions/medoptics.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- =========================================================
       CUSTOM DESIGN SERVICES
       High commercial intent — volume program gateway.
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/Custom/optical_design_page.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Custom/prototype.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Custom/freeopticaldesign1.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- =========================================================
       TECHNICAL LITERATURE
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/CCDlens.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/literature/Whitepaper.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- =========================================================
       COMPANY / PROFILE
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/Profile/support.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Profile/Shanghai.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.5</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Profile/contact.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.6</priority>
  </url>

  <!-- =========================================================
       EVENTS
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/Tradeshow/TradeShow.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
  </url>

  <!-- =========================================================
       LEGAL
       ========================================================= -->
  <url>
    <loc>https://www.optics-online.com/Profile/terms_and_conditions.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://www.optics-online.com/Profile/privacy.asp</loc>
    <lastmod>2026-04-21</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>

</urlset>
