{"product_id":"eti-fj18","title":"ETI-FJ18 - KUPO 18 Leaves Iris for S4 Junior","description":"\u003c!-- Sub-type: L-A (Lighting fixture accessory) --\u003e\u003c!-- Source: Description\/Missing_Markdown\/lighting_solution\/iris\/eti-fj18-18-leaves-iris-for-s4-junior.md --\u003e\u003cstyle\u003e.kupo-section-title { margin: 1.25rem 0 1rem 0; font-size: 22px !important; font-weight: 700; line-height: 1.3; color: #2C3E50 !important; letter-spacing: 0; }.product-description h3 { color: #2C3E50 !important; font-size: 18px !important; font-weight: bold; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.35; letter-spacing: 0; }.product-description, .product-description p, .product-description li { color: #222222 !important; }\u003c\/style\u003e\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\u003cdiv class=\"product-description\" data-sku=\"ETI-FJ18\" data-color=\"NA\"\u003e  \u003ch3\u003eOverview\u003c\/h3\u003e  \u003cp\u003eThe KUPO ETI-FJ18 is an 18-leaf manual iris made specifically for S4 Junior. It gives the smaller S4 Junior format a dedicated aperture-control accessory for tightening specials, reducing spill, and refining cue looks without changing the fixture position.\u003c\/p\u003e  \u003ch3\u003eWhy It Matters\u003c\/h3\u003e  \u003cp\u003eS4 Junior need an iris sized to their accessory format, not a larger profile iris forced into the wrong place. ETI-FJ18 keeps the same smooth manual control approach as the wider ETI family while matching the compact fixture format.\u003c\/p\u003e  \u003ch3\u003eKey Features\u003c\/h3\u003e  \u003cul\u003e    \u003cli\u003e18-leaf iris sized for S4 Junior rather than larger S4 accessory formats\u003c\/li\u003e    \u003cli\u003eAperture adjusts from 4.5 mm to 75 mm for broad or tight beam control\u003c\/li\u003e    \u003cli\u003eHeat-resistant stainless steel leaves are finished with formulated gray paint rated up to 450 °C\u003c\/li\u003e    \u003cli\u003eThree fixed focusing holes support quick placement in the accessory slot\u003c\/li\u003e    \u003cli\u003e Compact listed dimensions match the S4 Junior application\u003c\/li\u003e  \u003c\/ul\u003e  \u003ch3\u003eApplications\u003c\/h3\u003e  \u003cp\u003eUse it for compact profile specials, small theatres, studio stages, school venues, and rental systems using S4 Junior that need repeatable circular beam adjustment.\u003c\/p\u003e  \u003ch3\u003e Compatibility\u003c\/h3\u003e  \u003cp\u003eDesigned for S4 Junior, with listed dimensions A 80 mm, B 110 mm, C 12.5 mm, and D 78 mm.\u003c\/p\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{  \"@context\": \"https:\/\/schema.org\",  \"@type\": \"Product\",  \"name\": \"ETI-FJ18 | KUPO 18 Leaves Iris for S4 Junior\",  \"description\": \"The KUPO ETI-FJ18 is an 18-leaf manual iris made specifically for S4 Junior. It gives the smaller S4 Junior format a dedicated aperture-control accessory for tightening specials, reducing spill, and refining cue looks without changing the fixture position.\",  \"brand\": {    \"@type\": \"Brand\",    \"name\": \"KUPO\"  },  \"manufacturer\": {    \"@type\": \"Organization\",    \"name\": \"KUPO CO. LTD\",    \"url\": \"https:\/\/www.stage.com.tw\"  },  \"category\": \"Lighting Solution \u003e Iris\",  \"sku\": \"ETI-FJ18\",  \"mpn\": \"ETI-FJ18\",  \"material\": \"Stainless steel iris leaves with heat-resistant formulated gray paint\",  \"additionalProperty\": [    {      \"@type\": \"PropertyValue\",      \"name\": \"Product Type\",      \"value\": \"Manual iris\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Leaf Count\",      \"value\": \"18 leaves\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Compatible Fixture\",      \"value\": \"S4 Junior\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Aperture Range\",      \"value\": \"4.5 mm to 75 mm\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Leaf Material\",      \"value\": \"Stainless steel with formulated gray paint\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Temperature Rating\",      \"value\": \"Up to 450 °C\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Positioning\",      \"value\": \"Three fixed focusing holes\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Catalog Dimensions\",      \"value\": \"A 80 mm, B 110 mm, C 12.5 mm, D 78 mm\"    }  ]}\u003c\/script\u003e\u003cstyle\u003e.kupo-faq-seo-block { margin: 3rem 0 0 0; padding: 0; border: 0; background: transparent; box-sizing: border-box; }.kupo-faq-seo-block h2 { margin: 0 0 1.6rem 0; font-size: 22px !important; font-weight: 700; line-height: 1.4; color: #2C3E50 !important; }.kupo-faq-seo-item { border-top: 1px solid #ececec; padding: 0.8rem 0; }.kupo-faq-seo-item:first-of-type { border-top: 0; padding-top: 0; }.kupo-faq-seo-item h3 { margin: 0 0 0.35rem 0; font-size: 17px !important; font-weight: 600; line-height: 1.45; color: #2C3E50 !important; }.kupo-faq-seo-item p { margin: 0; line-height: 1.6; color: #222222 !important; }\u003c\/style\u003e\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"ETI-FJ18\" data-category=\"Lighting Solution\"\u003e  \u003ch2\u003e Frequently Asked Questions\u003c\/h2\u003e  \u003cdiv class=\"kupo-faq-seo-item\"\u003e    \u003ch3\u003e Can I use this in a full-size S4 fixture?\u003c\/h3\u003e    \u003cp\u003eNo. ETI-FJ18 is the S4 Junior model, with smaller listed dimensions than the full-size S4 iris formats.\u003c\/p\u003e  \u003c\/div\u003e  \u003cdiv class=\"kupo-faq-seo-item\"\u003e    \u003ch3\u003eIs the aperture range different from the other ETI iris models?\u003c\/h3\u003e    \u003cp\u003eThe listed family aperture range is the same 4.5 mm to 75 mm.\u003c\/p\u003e  \u003c\/div\u003e  \u003cdiv class=\"kupo-faq-seo-item\"\u003e    \u003ch3\u003eWhy are the leaves painted gray?\u003c\/h3\u003e    \u003cp\u003eThe formulated gray paint is listed for heat resistance up to 450 °C in theatrical fixture environments.\u003c\/p\u003e  \u003c\/div\u003e\u003c\/section\u003e\u003cscript type=\"application\/ld+json\"\u003e{  \"@context\": \"https:\/\/schema.org\",  \"@type\": \"FAQPage\",  \"mainEntity\": [    {      \"@type\": \"Question\",      \"name\": \"Can I use this in a full-size S4 fixture?\",      \"acceptedAnswer\": {        \"@type\": \"Answer\",        \"text\": \"No. ETI-FJ18 is the S4 Junior model, with smaller listed dimensions than the full-size S4 iris formats.\"      }    },    {      \"@type\": \"Question\",      \"name\": \"Is the aperture range different from the other ETI iris models?\",      \"acceptedAnswer\": {        \"@type\": \"Answer\",        \"text\": \"The listed family aperture range is the same 4.5 mm to 75 mm.\"      }    },    {      \"@type\": \"Question\",      \"name\": \"Why are the leaves painted gray?\",      \"acceptedAnswer\": {        \"@type\": \"Answer\",        \"text\": \"The formulated gray paint is listed for heat resistance up to 450 °C in theatrical fixture environments.\"      }    }  ]}\u003c\/script\u003e\u003c!-- Download block omitted: no confirmed spec sheet PDF for ETI-FJ18 --\u003e","brand":"KUPO Stage","offers":[{"title":"Fixture Accessory \/ Iris \/ Aperture Control","offer_id":53907504955691,"sku":"ETI-FJ18","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/6887\/6843\/files\/ETI-FJ18_b.jpg?v=1782111019","url":"https:\/\/kupostage.com\/products\/eti-fj18","provider":"KUPO Stage","version":"1.0","type":"link"}