{"id":1842,"date":"2026-03-31T11:35:45","date_gmt":"2026-03-31T11:35:45","guid":{"rendered":"https:\/\/sfgrental.com\/?post_type=product&#038;p=1842"},"modified":"2026-03-31T11:36:19","modified_gmt":"2026-03-31T11:36:19","slug":"arri-wcu-4-control","status":"publish","type":"product","link":"https:\/\/sfgrental.com\/en\/cameras\/focus-iris-zoom-controls\/arri-wcu-4-control\/","title":{"rendered":"ARRI WCU-4"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>The <strong>ARRI WCU-4<\/strong> (Wireless Compact Unit) is ARRI&#8217;s <strong>3-axis<\/strong> wireless hand unit for remote control of focus, iris and zoom \u2014 part of ARRI&#8217;s <strong>ECS<\/strong> (Electronic Control System): the lightest and most compact hand unit in its class within the ARRI ecosystem, at only <strong>780g<\/strong> including battery, designed to provide unrivalled comfort during long shooting days. It operates both <strong>wirelessly<\/strong> \u2014 via ARRI&#8217;s white radio system at <strong>2.4 GHz<\/strong> with <strong>8 channels<\/strong> and a range of up to <strong>200m outdoors and 30m indoors<\/strong> \u2014 and <strong>wired<\/strong> via LCS connection with cables up to <strong>80m<\/strong> in length. It is currently listed as a <strong>discontinued product<\/strong> by ARRI, having been superseded by more recent solutions within the ECS system.<\/p>\n<p>Its transflective <strong>3&#8243; display<\/strong> shows clearly organised lens and camera information \u2014 including data from the optional UDM-1 ultrasonic distance measurer \u2014 with perfect readability in all ambient lighting conditions. The focus knob is <strong>backlit<\/strong> for work in darkness, with tool-free adjustable friction to personal preference. Features include a <strong>focus tracking<\/strong> function \u2014 continuous subject following via the ARRI UDM-1 ultrasonic distance measurer when used with the UMC-4 motor controller \u2014, remote <strong>REC and tally<\/strong> function, programmable <strong>vibration<\/strong> alerts and position markers. The WCU-4&#8217;s personal settings \u2014 display arrangement, vibration patterns, user button \u2014 can be saved to an <strong>SD card<\/strong> and instantly loaded onto any WCU-4 anywhere in the world. Up to <strong>three hand units<\/strong> (WCU-4, SXU-1, ZMU-3A or WZE-3) can be connected in parallel in network mode.<\/p>\n<ul style=\"list-style-type: disc;\">\n<li>Type: 3-axis wireless hand unit for remote focus, iris and zoom control \u2014 ARRI WCU-4 Wireless Compact Unit \u2014 manufactured by ARRI, Germany \u2014 currently discontinued.<\/li>\n<li>Control axes: 3 \u2014 focus, iris and zoom.<\/li>\n<li>Operation: wireless via ARRI white radio 2.4 GHz \/ 8 channels \u2014 or wired via LCS up to 80m.<\/li>\n<li>Wireless range: up to 200m outdoors \u2014 up to 30m indoors.<\/li>\n<li>Display: 3&#8243; transflective \u2014 lens and camera data \u2014 UDM-1 ultrasonic distance data \u2014 perfect readability in all conditions.<\/li>\n<li>Backlit focus knob \u2014 tool-free adjustable friction.<\/li>\n<li>Pre-marked focus rings included \u2014 lens mapping \u2014 visibility in low-light conditions.<\/li>\n<li>Focus tracking \u2014 continuous subject following with UDM-1 + UMC-4.<\/li>\n<li>Remote REC and tally function.<\/li>\n<li>Programmable vibration alerts and user button.<\/li>\n<li>Personal settings saveable to SD card \u2014 instant personalisation of any WCU-4 worldwide.<\/li>\n<li>Up to 3 hand units in parallel in network mode \u2014 compatible with WCU-4, SXU-1, ZMU-3A, WZE-3.<\/li>\n<li>Compatible cameras: ARRI ALEXA Mini, ALEXA Plus, ALEXA Studio, ALEXA SXT W, ALEXA LF, ALEXA Mini LF, ALEXA 65 and ARRI AMIRA.<\/li>\n<li>Compatible motor controllers: ARRI UMC-4, SMC-1, EMC-1, AMC-1 and CForce Mini RF.<\/li>\n<li>Lens programming interface \u2014 advanced ALEXA remote camera control.<\/li>\n<li>Rugged and splash-proof construction.<\/li>\n<li>Power supply: 10.5\u201334 VDC.<\/li>\n<li>Battery life: 6\u20138 hours with Sony NP-FM type battery (7.2V).<\/li>\n<li>Dimensions: 151 \u00d7 161 \u00d7 90 mm.<\/li>\n<li>Weight: 730\u2013780g including battery \u2014 one of the lightest hand units in its class.<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>Perfect for:<\/strong> first assistant camera operators and focus pullers on any ARRI ALEXA production who need the most compact, lightweight, and complete wireless focus, iris and zoom control hand unit in the ARRI ECS system \u2014 3 axes, 780g, 3&#8243; transflective display, white radio 2.4 GHz up to 200m, focus tracking with UDM-1, remote REC and tally, SD card settings, full compatibility with the entire ALEXA family and all ARRI motor controllers \u2014, for feature films, series, commercials, Steadicam, crane, gimbal, and any ARRI ALEXA production where the most precise, lightweight, and ergonomic wireless lens control in the system is equally non-negotiable.<\/p>","protected":false},"featured_media":1841,"comment_status":"open","ping_status":"closed","template":"","meta":{"_angie_page":false},"product_brand":[137],"product_cat":[438,413],"product_tag":[],"class_list":["post-1842","product","type-product","status-publish","has-post-thumbnail","product_brand-arri","product_cat-focus-iris-zoom-controls","product_cat-cameras","first","instock","shipping-taxable","purchasable","product-type-simple"],"lang":"en","translations":{"en":1842,"es":1840},"_links":{"self":[{"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/product\/1842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/comments?post=1842"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/media\/1841"}],"wp:attachment":[{"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/media?parent=1842"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/product_brand?post=1842"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/product_cat?post=1842"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sfgrental.com\/en\/wp-json\/wp\/v2\/product_tag?post=1842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}