{"id":92489,"date":"2026-01-05T17:56:19","date_gmt":"2026-01-05T16:56:19","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=92489"},"modified":"2026-03-20T12:24:19","modified_gmt":"2026-03-20T11:24:19","slug":"omegon-ogdo-eyepiece-4mm-80","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-ogdo-oculair-4mm-80\/","title":{"rendered":"Omegon 4mm Eyepiece 80\u00b0 OGDO"},"content":{"rendered":"

Omegon OGDO Eyepiece 4mm 80\u00b0 -<\/strong> Dive into the sky at maximum magnification<\/strong>
The Omegon OGDO 4mm eyepiece is made for those who want to see real detail. Its short focal length gets high magnifications out of your telescope, while the wide 80\u00b0 field of view keeps the image surprisingly wide and comfortable. Ideal for observing fine structures on planets and the moon, without the \u201ctube feel\u201d of classic high-power eyepieces.<\/p>\n\n\n\n

Sharp, contrasty and true to nature<\/strong>
Thanks to lanthanum ED glass from Ohara (Japan), this eyepiece delivers an exceptionally clean image. Color aberrations are greatly reduced and details remain sharp even toward the edge of the field of view. Planetary structures, moon craters and double stars come into focus clearly and steadily.<\/p>\n\n\n\n

\"Omegon<\/figure>\n\n\n\n

High comfort even at high magnification<\/strong>
With a generous eye relief of 20 mm, your viewing is relaxed, even with glasses. The rotating eyecup makes it easy to adjust the view perfectly. This keeps observing comfortable, even during longer observation sessions at high magnification.<\/p>\n\n\n\n

Built for intensive use<\/strong>
The all-metal housing feels solid and is waterproof and dustproof. This eyepiece is designed for real observing nights in changing conditions. Dew stains, dust or temperature variations are not a problem - you can rely on the OGDO eyepiece to keep performing.<\/p>\n\n\n\n

\"Omegon<\/figure>\n\n\n\n

Versatile and flexible<\/strong>
The OGDO 4mm eyepiece works very well with telescopes from f\/4.5 up. For very fast systems, a coma corrector can help maintain maximum sharpness even at the edge. Thanks to the combination of 1.25\u2033 AND 2\u2033 connection, this eyepiece can be used flexibly on almost any telescope setup.<\/p>\n\n\n\n

What we recommend<\/strong>
\u2713 Moon: excellent - high magnification with lots of detail
\u2713 Planets: excellent - sharp and high-contrast image
\u2713 Double stars: very suitable - accurate separation
\u2717 Deep-sky: limited suitability - especially for compact objects
\u2717 Astrophotography: not suitable<\/p>\n\n\n\n

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

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Focal length (mm)<\/td>4<\/td><\/tr>
Field of view (\u00b0)<\/td>80<\/td><\/tr>
Eye relief (mm)<\/td>20<\/td><\/tr>
Number of lenses<\/td>8<\/td><\/tr>
Number of groups<\/td>4<\/td><\/tr>
Telescope connection<\/td>1,25\u2033 & 2\u2033<\/td><\/tr>
Optics coating<\/td>FMC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Adjustable eye cup<\/td>Yes (rotatable)<\/td><\/tr>
Filter thread<\/td>Yes<\/td><\/tr>
Waterproof<\/td>Yes<\/td><\/tr>
Inert gas charge<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Equipment<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Transport bag<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Series<\/td>OGDO<\/td><\/tr>
Type<\/td>Ocular<\/td><\/tr>
Design<\/td>UWA<\/td><\/tr>
Color<\/td>Black<\/td><\/tr>
Diameter (mm)<\/td>60,1<\/td><\/tr>
Height (mm)<\/td>162,8<\/td><\/tr>
Weight (g)<\/td>570<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Omegon OGDO Eyepiece 4mm 80\u00b0<\/span>\u00a0Comes with 1.25\u2033\/2\u2033 mount, 80\u00b0 field of view, Ohara's 8-lens ED optics, swivel eyecup, multicoating, velvet storage bag and protective caps - ideal for detailed and colorful planetary observations with razor-sharp edges and ultimate comfort, even for eyeglass wearers.<\/span><\/p>","protected":false},"featured_media":98865,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[3131,56],"product_tag":[],"class_list":["post-92489","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-groothoek-oculairen-wide-field","product_cat-telescoop-accessoires","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":92483,"url":"https:\/\/www.telescoop.nl\/en\/omegon-ogdo-oculair-20mm-80\/","url_meta":{"origin":92489,"position":0},"title":"Omegon 20mm Eyepiece OGDO 80\u00b0","author":"","date":"05-01-2026","format":false,"excerpt":"Omegon OGDO Eyepiece 20mm 80\u00b0 comes with 2\" mount, 80\u00b0 wide-angle optics, ED lens, swivel eyecup, multicoating, waterproof housing, velvet storage bag and protective caps - 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