{"id":33310,"date":"2025-11-10T15:24:46","date_gmt":"2025-11-10T14:24:46","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=33310"},"modified":"2026-10-13T10:54:34","modified_gmt":"2026-10-13T08:54:34","slug":"ioptron-ieaf-electronic-automatic-focuser","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/ioptron-ieaf-electronic-automatic-focuser\/","title":{"rendered":"iOptron iEAF Electronic Automatic Focuser"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>iOptron iEAF Electronic Automatic Focuser: electronic focus motor for your existing focuser<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The iEAF motorizes the focuser already on your telescope. The stepper motor couples to the focus shaft via the included mounting plate and then focuses electronically: manually using the buttons or automatically via the computer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Via ASCOM, the iEAF runs along with autofocus routines in your capture software. The built-in temperature sensor enables temperature compensation, so the focus stays sharp while the optical tube cools down at night.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-1.jpg\" alt=\"iOptron iEAF Electronic Automatic Focuser\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-2.jpg\" alt=\"iOptron iEAF Electronic Automatic Focuser\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-3.jpg\" alt=\"iOptron iEAF Electronic Automatic Focuser\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-4.jpg\" alt=\"iOptron iEAF Electronic Automatic Focuser\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8d39b2df wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-2.jpg\" alt=\"iOptron iEAF Electronic Automatic Focuser\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:62%\">\n<h4 class=\"wp-block-heading\"><strong>Quiet and vibration-free<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The motor operates virtually silently and without touching the tube: no vibrations in the image during focusing, which is especially important for planetary imaging and high magnification.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8d39b2df wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-3.jpg\" alt=\"iOptron iEAF Electronic Automatic Focuser\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:62%\">\n<h4 class=\"wp-block-heading\"><strong>Assembly<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Mounting plate, mounting hardware, and USB cables are included. Check whether your focuser has a free end of the focus shaft that the coupler fits onto.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Included<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>iEAF focus motor<\/li>\n\n\n\n<li>Mounting plate<\/li>\n\n\n\n<li>USB cables<\/li>\n\n\n\n<li>Fasteners<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Featured accessories<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Keep a spare USB cable in your suitcase to connect to your laptop.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>For whom yes and for whom no<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2713 Astrophotographers who want to motorize their existing focuser without replacing it<\/li>\n\n\n\n<li>\u2717 Anyone looking for a complete inline focuser should choose the iAFS2 or iAFS3<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Type<\/strong><\/td><td>Electronic focus motor for existing focusers<\/td><\/tr><tr><td><strong>Drive<\/strong><\/td><td>Stepper motor<\/td><\/tr><tr><td><strong>Controls<\/strong><\/td><td>Buttons and computer via ASCOM<\/td><\/tr><tr><td><strong>Additional<\/strong><\/td><td>Built-in temperature sensor<\/td><\/tr><tr><td><strong>Included<\/strong><\/td><td>Mounting plate, USB cables, mounting hardware<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more mounts and accessories for this brand at the <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/ioptron\/\">iOptron brand page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>iOptron iEAF electronic stepper motor focuser with temperature sensor, mounting plate, USB cables and mounting hardware, for automatic focusing via ASCOM.<\/p>","protected":false},"featured_media":97161,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[2790],"product_cat":[56,3114,500],"product_tag":[],"class_list":["post-33310","product","type-product","status-publish","has-post-thumbnail","product_brand-ioptron","product_cat-telescoop-accessoires","product_cat-electronic-focusers","product_cat-focusers","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[33235],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":114501,"url":"https:\/\/www.telescoop.nl\/en\/touptek-aaf-elektrische-scherpstelmotor\/","url_meta":{"origin":33310,"position":0},"title":"ToupTek AAF electric focus motor","author":"Info telescoop","date":"22-10-2026","format":false,"excerpt":"Focus motor that you attach to the focus ring of your telescope or guide telescope. Automatic focusing via software, with temperature sensor and manual control.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"ToupTek AAF elektrische scherpstelmotor","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/pro_AAF01.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/pro_AAF01.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/pro_AAF01.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/pro_AAF01.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":93183,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-estia-focus-motor\/","url_meta":{"origin":33310,"position":1},"title":"Omegon Pro Estia Focus Engine","author":"","date":"09-01-2026","format":false,"excerpt":"Electronic focus motor with hand control box, temperature sensor, four couplings, mounting plate, and USB-C cable. Works with ASCOM and INDI, supports up to 5 kg.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Pro-Focus-Motor-Estia-13.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33267,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-iafs3-2-inch-automatic-focuser\/","url_meta":{"origin":33310,"position":2},"title":"iOptron iAFS3 2\u2033 Automatic Focuser","author":"","date":"10-11-2025","format":false,"excerpt":"iOptron iAFS3 3\" Automatic Focuser with iLock, 0.6 \u00b5m Resolution, 6kg Payload Capacity, 68mm Clear Aperture, and Dual USB-C, includes 2\" Visual Back.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS3-2-Automatic-Focuser-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33266,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-iafs2-2-inch-automatic-focuser\/","url_meta":{"origin":33310,"position":3},"title":"iOptron iAFS2 2\u2033 Automatic Focuser","author":"","date":"10-11-2025","format":false,"excerpt":"iOptron iAFS2 2\" Automatic Focuser with iLock, 0.6 \u00b5m resolution, 5 kg payload capacity, temperature sensor, camera angle adjuster, and dual USB-C, includes 2\" visual back.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS2-2-Automatic-Focuser-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":113511,"url":"https:\/\/www.telescoop.nl\/en\/motorfocus-montageset-voor-feather-touch-25-en-30-inch-en-astro-physics-27-inch-starlight\/","url_meta":{"origin":33310,"position":4},"title":"Motorfocus mounting kit for Feather Touch 2.5 and 3.0 inch and Astro-Physics 2.7 inch | Starlight","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Mounting kit to mount a stepper motor on a 2.5 or 3.0 inch Feather Touch or a 2.7 inch Astro-Physics focuser for electronic focusing.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13093_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13093_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13093_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113513,"url":"https:\/\/www.telescoop.nl\/en\/motorfocus-montageset-voor-feather-touch-35-inch-en-astro-physics-40-inch-starlight\/","url_meta":{"origin":33310,"position":5},"title":"Motorfocus mounting kit for Feather Touch 3.5 inch and Astro-Physics 4.0 inch | Starlight","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"Mounting kit from Starlight Instruments for a stepper motor on a 3.5 inch Feather Touch or a 4.0 inch Astro-Physics focuser.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13094_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13094_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13094_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/33310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=33310"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97161"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=33310"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=33310"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=33310"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=33310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}