{"product_id":"william-optics-zwo-eaf-bracket-clutch-wifd","title":"William Optics ZWO EAF Mounting Bracket with Clutch for WIFD Focusers","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eClutch mechanism for switching between manual and motorized focusing\u003c\/li\u003e\n\u003cli\u003eTwo versions: one for the original ZWO EAF, one for the ZWO EAFN \/ EAF Pro\u003c\/li\u003e\n\u003cli\u003eFits William Optics focusers with a modular focusing mechanism (WIFD recommended)\u003c\/li\u003e\n\u003cli\u003eCNC-machined anodized aluminum, belt-driven layout\u003c\/li\u003e\n\u003cli\u003eMade by K-ASTEC for William Optics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics ZWO EAF Mounting Bracket with Clutch for WIFD Focusers\u003c\/h2\u003e\n\u003cp\u003eThis bracket, made by K-ASTEC and sold by William Optics, mounts a ZWO electronic automatic focuser on a William Optics focuser. It is designed around the WIFD focuser and fits other William Optics focusers that use the modular focusing mechanism. Its clutch lets you switch between manual and motorized focusing. It comes in two versions: one for the original ZWO EAF and one for the ZWO EAFN \/ EAF Pro.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Clutch: Manual or Motorized Focus\u003c\/h3\u003e\n\u003cp\u003eThe clutch disengages the ZWO focuser motor from the focuser so you can turn the focus knob by hand, then re-engages it for software-controlled autofocus. William Optics uses a stainless steel, oil-sealed structure for smooth, precise operation. That is handy during setup, when you first look for the approximate focus point with a new camera, or when you want to focus visually at the eyepiece without connecting any software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBelt Drive, Motor in Line with the Tube\u003c\/h3\u003e\n\u003cp\u003eInstead of the stock direct coupling, the bracket uses a belt-driven layout between the motor and the focuser. That lets the EAF sit in line with the telescope tube, for better balance and so you can store the telescope without removing the focuser motor. The bracket is CNC-machined from anodized aluminum alloy, light and rigid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCheck the Mounting Position Before Ordering\u003c\/h3\u003e\n\u003cp\u003eThe bracket needs clearance for the full height of the EAF, more than 52 mm. Side mounting is therefore recommended, which means rotating the whole telescope tube by 90 degrees. Mounting underneath works only on focusers that are offset from the bottom plate, such as the Ultra-Cat 108 and the FLT120 or larger. On other telescopes you would need a taller riser block; the William Optics riser block is not intended for this. On William Optics focusers other than the WIFD, small dimensional differences may call for a bit of force during installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eChoosing the Right Version\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOriginal EAF:\u003c\/strong\u003e for the first-generation ZWO EAF focuser motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEAFN \/ EAF Pro:\u003c\/strong\u003e for the newer ZWO EAFN and EAF Pro (2025) focuser motors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich version do I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePick the version that matches your ZWO focuser motor: \u003cstrong\u003eOriginal EAF\u003c\/strong\u003e for the first-generation ZWO EAF, or \u003cstrong\u003eEAFN \/ EAF Pro\u003c\/strong\u003e for the ZWO EAFN and EAF Pro.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this bracket fit a focuser that is not a WIFD?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt fits William Optics focusers with a \u003cstrong\u003emodular focusing mechanism\u003c\/strong\u003e. The WIFD is recommended; on other William Optics focusers, small dimensional differences may call for a bit of force during installation. It is not made for other brands' focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the clutch do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt lets you switch between motorized and manual focusing. Disengage it to focus by hand, then engage it again to let the ZWO focuser take over.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount the EAF underneath the telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly on focusers offset from the bottom plate, such as the \u003cstrong\u003eUltra-Cat 108\u003c\/strong\u003e and the \u003cstrong\u003eFLT120 or larger\u003c\/strong\u003e. The bracket needs clearance for the full height of the EAF (more than 52 mm), so side mounting, with the tube rotated 90 degrees, is recommended on other models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still focus if my computer or ASIAIR disconnects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Disengage the clutch and focus by hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eK-ASTEC (for William Optics)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible focusers\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics focusers with modular focusing mechanism (WIFD recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible focuser motors\u003c\/td\u003e\n\u003ctd\u003eZWO EAF (Original EAF version) or ZWO EAFN \/ EAF Pro (EAFN \/ EAF Pro version)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-machined anodized aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive\u003c\/td\u003e\n\u003ctd\u003eBelt-driven layout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClutch\u003c\/td\u003e\n\u003ctd\u003eYes, stainless steel oil-sealed structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket dimensions\u003c\/td\u003e\n\u003ctd\u003e88 × 41 × 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClearance needed\u003c\/td\u003e\n\u003ctd\u003eFull height of the EAF (more than 52 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended mounting\u003c\/td\u003e\n\u003ctd\u003eSide mounted (tube rotated 90°); underneath only on offset focusers (Ultra-Cat 108, FLT120 and larger)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMounting bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eClutch pulley\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMotor pulley\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTiming belt\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMounting screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"EAFN \/ EAF Pro","offer_id":52853690499357,"sku":"WO-AD-NEAF-C-WIFD","price":259.0,"currency_code":"CAD","in_stock":true},{"title":"Original EAF","offer_id":67984726458653,"sku":"WO-AD-EAF-C-WIFD","price":259.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/william-optics-zwo-eaf-bracket-clutch-1.jpg?v=1793900550","url":"https:\/\/davidastro.com\/products\/william-optics-zwo-eaf-bracket-clutch-wifd","provider":"David Astro","version":"1.0","type":"link"}