{"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":"2026-03-12T09:58:39","modified_gmt":"2026-03-12T08:58:39","slug":"ioptron-ieaf-electronic-automatic-focuser","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/ioptron-ieaf-electronic-automatic-focuser\/","title":{"rendered":"iOptron iEAF Electronic Automatic Focuser"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Always perfectly sharp, without manual work<\/strong><br>The iOptron iEAF makes manual focusing a thing of the past. At the touch of a button, your telescope automatically and accurately focuses. You will always get razor-sharp images - whether you are photographing or observing.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iEAF-Electronic-Automatic-Focuser-1.jpg\" alt=\"iOptron iEAF electronic automatic focuser with temperature sensor and USB connection for fine adjustment\" class=\"wp-image-33338\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Smart and silent focusing<\/strong><br>The powerful stepper motor operates smoothly and almost silently. No vibrations, no distractions. You can concentrate fully on what really matters: the image in your eyepiece or on your screen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Accurate at any temperature<\/strong><br>The built-in temperature sensor compensates for changes in the environment, keeping your focus stable even during long nights under the stars. No more blurry images due to temperature changes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>User-friendly and compatible<\/strong><br>Connect the iEAF via USB and you are ready to go. The focuser works with popular planetarium and imaging software, such as ASCOM,&nbsp;<em>Stellarium<\/em>&nbsp;and&nbsp;<em>Cartes du Ciel<\/em>. Prefer to adjust manually? You can do that at the touch of a button.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Memory and versatility<\/strong><br>The iEAF remembers its last position even after turning off. That means you can always pick up where you left off. It fits most Crayford and rack and pinion focusers and comes with mounting adapters for a perfect fit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Your advantage<\/strong><br>The iOptron iEAF brings comfort, precision and modern technology to your home. Perfect for astrophotographers and visual observers who don't want to waste time focusing manually.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>General<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Model<\/td><td>iOptron iEAF (Electronic Automatic Focuser)<\/td><\/tr><tr><td>Type<\/td><td>Focuser<\/td><\/tr><tr><td>Design<\/td><td>Motors &amp; controls<\/td><\/tr><tr><td>Color<\/td><td>Black<\/td><\/tr><tr><td>Weight<\/td><td>255 g<\/td><\/tr><tr><td>Dimensions (L x W x H).<\/td><td>6.1 \u00d7 5.1 \u00d7 4.1 cm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Performance<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Carrying capacity<\/td><td>5 kg<\/td><\/tr><tr><td>Engine<\/td><td>Step motor with high precision<\/td><\/tr><tr><td>Operation<\/td><td>Very quiet, backlash-free<\/td><\/tr><tr><td>Position Memory<\/td><td>Yes, retains focus position when turned off<\/td><\/tr><tr><td>Temperature sensor<\/td><td>Built-in for automatic compensation<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Connections &amp; Compatibility<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Power supply<\/td><td>5V via USB<\/td><\/tr><tr><td>Connection<\/td><td>USB 2.0<\/td><\/tr><tr><td>Software support<\/td><td>ASCOM-compatible<\/td><\/tr><tr><td>Manual operation<\/td><td>Possible via button on the housing<\/td><\/tr><tr><td>Compatibility<\/td><td>Crayford and rack-and-pinion focusers with adapters<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>iOptron iEAF comes with electronic focuser, temperature-sensitive stepper motor, mounting plate, USB cables and mounting hardware - ideal for precise auto-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":[56,3114,593,500],"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-focus-navigatie","product_cat-focusers","product_shipping_class-licht","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":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":33266,"url":"https:\/\/staging.telescoop.nl\/en\/ioptron-iafs2-2-inch-automatic-focuser\/","url_meta":{"origin":33310,"position":0},"title":"iOptron iAFS2 2\u2033 Automatic Focuser","author":"","date":"10-11-2025","format":false,"excerpt":"iOptron iAFS2 2\" comes with automatic focuser, 2\" visual back, temperature sensor and USB-C cables - 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capable of high precision focusing with 0.4 \u00b5m accuracy.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS3-2-Automatic-Focuser-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS3-2-Automatic-Focuser-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS3-2-Automatic-Focuser-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS3-2-Automatic-Focuser-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":33307,"url":"https:\/\/staging.telescoop.nl\/en\/ioptron-adapter-iafs3-gso-newton-3\/","url_meta":{"origin":33310,"position":2},"title":"iOptron Adapter iAFS3 \/ GSO Newton 3\u2033","author":"","date":"10-11-2025","format":false,"excerpt":"iOptron Adapter iAFS3 wordt geleverd met een aluminium adapter voor montage van de iAFS3 op GSO 10\" & 12\" Newton 3\" focusers \u2013 ideaal voor nauwkeurige bevestiging.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-Adapter-iAFS3-GSO-Newton-3-1-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-Adapter-iAFS3-GSO-Newton-3-1-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-Adapter-iAFS3-GSO-Newton-3-1-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-Adapter-iAFS3-GSO-Newton-3-1-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":33304,"url":"https:\/\/staging.telescoop.nl\/en\/ioptron-iafs2-m90-adapter\/","url_meta":{"origin":33310,"position":3},"title":"iOptron iAFS2 \/ M90 Adapter","author":"","date":"10-11-2025","format":false,"excerpt":"iOptron iAFS2 \/ M90 comes with an aluminum adapter for mounting iAFS2 on telescopes with M90x1 threads - ideal for GSO RC 6, RC 8 and similar models.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS2-M90-Adapter-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS2-M90-Adapter-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS2-M90-Adapter-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/iOptron-iAFS2-M90-Adapter-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":32686,"url":"https:\/\/staging.telescoop.nl\/en\/ioptron-accessory-kopie\/","url_meta":{"origin":33310,"position":4},"title":"iOptron AZ Pro Mount GoTo Tri-Pier","author":"","date":"06-11-2025","format":false,"excerpt":"iOptron AZ Pro comes with GoTo mount, integrated GPS, internal battery, counterweight, Go2Nova hand controller, aluminum carrying case and stable Tri-Pier tripod - 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