{"id":33267,"date":"2025-11-10T13:53:15","date_gmt":"2025-11-10T12:53:15","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=33267"},"modified":"2026-03-12T10:09:09","modified_gmt":"2026-03-12T09:09:09","slug":"ioptron-iafs3-2-inch-automatic-focuser","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/ioptron-iafs3-2-inch-automatic-focuser\/","title":{"rendered":"iOptron iAFS3 2\u2033 Automatic Focuser"},"content":{"rendered":"

iOptron iAFS3 2\u2033 - Ultra-precise electronic focuser<\/strong><\/p>\n\n\n\n

The iOptron iAFS3 2\u2033<\/strong> automatically brings sharp images to your telescope. It mounts directly along the optical axis, without complicated mounts that can wobble. Thanks to iLock\u2122 technology, your focus remains stable even in heavy astro setups.<\/p>\n\n\n\n

You can choose from three focus modes: manual, motorized or via your computer. The manual focus wheel lets you get close to focus quickly. The built-in temperature sensor automatically adjusts focus as temperatures change, so stars and planets always stay in focus. The solid metal housing and dirt-resistant surface ensure that the focuser remains reliable even in cold or dusty conditions.<\/p>\n\n\n\n

The iAFS3 2\u2033 has an accuracy of 0.4 \u00b5m. It comes with a 2-inch visual back and USB-C cables for easy connection to your computer. Compatible with ASCOM & INDI, it is ideal for visual use and astrophotography.<\/p>\n\n\n\n

Expected<\/strong><\/h3>\n\n\n\n

\u2713 Razor-sharp constellations and planets
\u2713 Quick change between manual and motorized focusing
\u2713 Automatic compensation for temperature fluctuations
\u2717 Only suitable for systems with 2\u2033 connection or suitable adapters<\/p>\n\n\n\n

Included<\/strong><\/h3>\n\n\n\n
    \n
  • iAFS3 focusing device<\/li>\n\n\n\n
  • 2\u2033 Visual Back (P-FA20-VB)<\/li>\n\n\n\n
  • 2x USB 2.0 (Type-C) cable<\/li>\n<\/ul>\n\n\n\n

    Specifications<\/strong><\/h3>\n\n\n\n

    Capacity<\/strong><\/p>\n\n\n\n

    Feature<\/th>Description<\/th><\/tr><\/thead>
    Carrying capacity (kg)<\/td>5<\/td><\/tr>
    Power supply<\/td>5V via USB<\/td><\/tr>
    Connection<\/td>USB 2.0 Type-C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Focus electronically<\/strong><\/p>\n\n\n\n

    Feature<\/th>Description<\/th><\/tr><\/thead>
    Software<\/td>Compatible with ASCOM & INDI<\/td><\/tr>
    Free passage (mm)<\/td>76<\/td><\/tr>
    Drawtube travel (mm)<\/td>30<\/td><\/tr>
    Engine Type<\/td>Stepper motors<\/td><\/tr>
    Ocular connection<\/td>2\u2033<\/td><\/tr>
    Suitable for<\/td>Depending on the adapter<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Details<\/strong><\/p>\n\n\n\n

    Feature<\/th>Description<\/th><\/tr><\/thead>
    Controllable via PC<\/td>Yes<\/td><\/tr>
    Rotatable<\/td>Yes<\/td><\/tr>
    Power supply<\/td>No<\/td><\/tr>
    Cable<\/td>USB<\/td><\/tr>
    Motor-powered<\/td>Yes<\/td><\/tr>
    USB Hub<\/td>2x USB 2.0<\/td><\/tr>
    Temperature sensor<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    General<\/strong><\/p>\n\n\n\n

    Feature<\/th>Description<\/th><\/tr><\/thead>
    External dimensions LxWxH (cm)<\/td>13.3 x 10.8 x 9.4<\/td><\/tr>
    Weight (g)<\/td>1062<\/td><\/tr>
    Series<\/td>iAFS<\/td><\/tr>
    Type<\/td>Focuser<\/td><\/tr>
    Design<\/td>Motors & controls<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

    iOptron iAFS3 2\u2033 comes with automatic focuser, 2\u2033 visual back, USB-C cables and temperature sensor - capable of high precision focusing with 0.4 \u00b5m accuracy.<\/p>","protected":false},"featured_media":97130,"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-33267","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":33307,"url":"https:\/\/staging.telescoop.nl\/en\/ioptron-adapter-iafs3-gso-newton-3\/","url_meta":{"origin":33267,"position":0},"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":33309,"url":"https:\/\/staging.telescoop.nl\/en\/ioptron-iafs3-m117-adapter\/","url_meta":{"origin":33267,"position":1},"title":"iOptron iAFS3 \/ M117 Adapter","author":"","date":"10-11-2025","format":false,"excerpt":"iOptron iAFS3 \/ M117 comes with an aluminum adapter with M117x1 thread - 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