{"product_id":"etf-pb","title":"ETF-PB B Size Pattern Holder for S4 (ETF-PB)","description":"\u003c!-- Sub-type: L-A --\u003e\u003c!-- Source: etf-pb-b-size-pattern-holder-for-s4.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=\"ETF-PB\" data-color=\"Metal frame\"\u003e  \u003ch3\u003eOverview\u003c\/h3\u003e  \u003cp\u003eThe ETF-PB is a B size pattern holder for S4, built to keep metal gobos flat and stable in the fixture focal plane. Its metal frame and heat-resistant plastic knob make pattern handling more predictable during focus, changeover, and mid-show service.\u003c\/p\u003e  \u003ch3\u003eWhy It Matters\u003c\/h3\u003e  \u003cp\u003eB size holders are the everyday workhorse for many Source Four pattern calls. When a logo or texture has to drop into a fixture quickly, the correct holder keeps the pattern seated cleanly instead of turning focus time into hardware sorting.\u003c\/p\u003e  \u003ch3\u003eKey Features\u003c\/h3\u003e  \u003cul\u003e    \u003cli\u003eB size holder format matches the intended S4 accessory slot instead of forcing a near-fit holder into the optical path.\u003c\/li\u003e    \u003cli\u003eMetal gobo frame keeps the pattern flat through normal fixture heat, helping logos and texture projections stay sharp.\u003c\/li\u003e    \u003cli\u003eHeat-resistant plastic knob supports tool-free insertion and removal without grabbing the hot metal frame directly.\u003c\/li\u003e    \u003cli\u003ePurpose-built pattern holder helps rental and venue crews keep gobo stock organized by fixture family.\u003c\/li\u003e  \u003c\/ul\u003e  \u003ch3\u003eHost Fixture\u003c\/h3\u003e  \u003cp\u003eDesigned for S4. This holder is for standard metal-cut gobos used in projection work, with the holder size selected to match the fixture accessory slot and focal plane.\u003c\/p\u003e  \u003ch3\u003eApplications\u003c\/h3\u003e  \u003cp\u003eA practical choice for theatre logo projection, scenic texture, corporate branding, architectural pattern work, and rental-house gobo inventory where repeatable fixture fit matters.\u003c\/p\u003e  \u003ch3\u003e Compatibility\u003c\/h3\u003e  \u003cp\u003eUse with S4; match holder size and fixture slot before mixing S4, Selecon Pacific\/SPX, and other ellipsoidal inventories.\u003c\/p\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{  \"@context\": \"https:\/\/schema.org\",  \"@type\": \"Product\",  \"name\": \"ETF-PB B Size Pattern Holder for S4 (ETF-PB)\",  \"description\": \"The ETF-PB is a B size pattern holder for S4, built to keep metal gobos flat and stable in the fixture focal plane. Its metal frame and heat-resistant plastic knob make pattern handling more predictable during focus, changeover, and mid-show service.\",  \"brand\": {    \"@type\": \"Brand\",    \"name\": \"KUPO\"  },  \"manufacturer\": {    \"@type\": \"Organization\",    \"name\": \"KUPO CO. LTD\"  },  \"category\": \"Lighting Solution \u003e Barndoors \u0026 PAR Accessories\",  \"sku\": \"ETF-PB\",  \"mpn\": \"ETF-PB\",  \"color\": \"Metal frame\",  \"material\": \"Metal frame with heat-resistant plastic knob\",  \"additionalProperty\": [    {      \"@type\": \"PropertyValue\",      \"name\": \"Product Type\",      \"value\": \"Pattern holder\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Compatible Fixture\",      \"value\": \"S4\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Holder Type\",      \"value\": \"Metal gobo frame\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Knob\",      \"value\": \"Heat-resistant plastic, tool-free swap\"    },    {      \"@type\": \"PropertyValue\",      \"name\": \"Finish\",      \"value\": \"Metal frame\"    }  ]}\u003c\/script\u003e\u003cstyle\u003e.kupo-faq-seo-section {  margin-top: 2rem;}.kupo-faq-seo-item {  margin-bottom: 1.25rem;}.kupo-faq-seo-item h3 {  color: #2C3E50 !important;  font-size: 17px !important;  font-weight: 600;  margin-bottom: 0.4rem;  line-height: 1.35;  letter-spacing: 0;}.kupo-faq-seo-item p {  color: #222222 !important;  margin-top: 0;}\u003c\/style\u003e\u003csection class=\"kupo-faq-seo-section\"\u003e  \u003ch2 class=\"kupo-section-title\"\u003e Frequently Asked Questions\u003c\/h2\u003e  \u003cdiv class=\"kupo-faq-seo-item\"\u003e    \u003ch3\u003e Can this hold a glass gobo?\u003c\/h3\u003e    \u003cp\u003eThis model is intended as a metal gobo frame. Use the matching glass holder when the design calls for glass artwork or photographic color detail.\u003c\/p\u003e  \u003c\/div\u003e  \u003cdiv class=\"kupo-faq-seo-item\"\u003e    \u003ch3\u003eWhy does the holder size matter so much?\u003c\/h3\u003e    \u003cp\u003eThe holder places the pattern at the correct focal position. The wrong size can fit poorly, shift the image, or fail to seat in the accessory slot.\u003c\/p\u003e  \u003c\/div\u003e  \u003cdiv class=\"kupo-faq-seo-item\"\u003e    \u003ch3\u003e Can the pattern be swapped without tools?\u003c\/h3\u003e    \u003cp\u003eYes. The heat-resistant plastic knob is designed for tool-free handling during normal fixture service.\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 this hold a glass gobo?\",      \"acceptedAnswer\": {        \"@type\": \"Answer\",        \"text\": \"This model is intended as a metal gobo frame. Use the matching glass holder when the design calls for glass artwork or photographic color detail.\"      }    },    {      \"@type\": \"Question\",      \"name\": \"Why does the holder size matter so much?\",      \"acceptedAnswer\": {        \"@type\": \"Answer\",        \"text\": \"The holder places the pattern at the correct focal position. The wrong size can fit poorly, shift the image, or fail to seat in the accessory slot.\"      }    },    {      \"@type\": \"Question\",      \"name\": \"Can the pattern be swapped without tools?\",      \"acceptedAnswer\": {        \"@type\": \"Answer\",        \"text\": \"Yes. The heat-resistant plastic knob is designed for tool-free handling during normal fixture service.\"      }    }  ]}\u003c\/script\u003e","brand":"KUPO Stage","offers":[{"title":"Fixture Accessory \/ Pattern \/ Gobo Holding","offer_id":53907504103723,"sku":"ETF-PB","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/6887\/6843\/files\/ETF-PB_b.jpg?v=1782111007","url":"https:\/\/kupostage.com\/products\/etf-pb","provider":"KUPO Stage","version":"1.0","type":"link"}