{"id":34225,"date":"2025-11-17T15:31:43","date_gmt":"2025-11-17T14:31:43","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=34225"},"modified":"2026-03-11T18:59:07","modified_gmt":"2026-03-11T17:59:07","slug":"william-optics-50mm-1-25-inch-viewfinder-upright-view-90-degrees","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/william-optics-50mm-1-25-inch-zoeker-rechtopstaand-beeld-90-graden\/","title":{"rendered":"William Optics 50 mm 1.25\u2033 Viewfinder Upright View 90\u00b0"},"content":{"rendered":"

William Optics 50mm 1.25\u2033 - Optical Viewfinder<\/strong><\/p>\n\n\n\n

The William Optics 50mm 1.25\u2033 viewfinder<\/strong> makes finding stars and planets much easier. With the telescope alone, you often only see a small part of the sky. This viewfinder shows a larger field, so you can quickly orient yourself and find targets.<\/p>\n\n\n\n

\"William<\/figure>\n\n\n\n

It gives an upright and correct lateral view. This way, you can view comfortably even when looking straight up in the zenith. The spiral focuser lets you easily use different eyepieces, so you adjust the magnification to suit your needs.<\/p>\n\n\n\n

\"William<\/figure>\n\n\n\n

This viewfinder allows you to accurately aim your telescope and save time while looking for objects. It is sturdy, lightweight and built of aluminum, making it both durable and practical to use.<\/p>\n\n\n\n

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

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Lens diameter (mm)<\/td>50<\/td><\/tr>
Field of view (\u00b0)<\/td>5,7<\/td><\/tr>
Ocular connection<\/td>1,25\u2033<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Oblique viewing position<\/td>yes<\/td><\/tr>
Correction upright image<\/td>yes<\/td><\/tr>
Correction horizontal inverted image<\/td>yes<\/td><\/tr>
Interchangeable eyepieces<\/td>yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Tube clamps<\/td>no<\/td><\/tr>
Tracking scope rings<\/td>no<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Seeker<\/td><\/tr>
Design<\/td>Optical viewfinder<\/td><\/tr>
Weight (g)<\/td>620<\/td><\/tr>
Length (mm)<\/td>220<\/td><\/tr>
Diameter (mm)<\/td>58 (dew cap diameter)<\/td><\/tr>
Exterior material<\/td>Aluminum<\/td><\/tr>
Color<\/td>Gold<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

William Optics 50mm 1.25 comes with aluminum body, spiral focuser, 1.25\u2033 eyepiece port, upright and side-corrected image - ideal for comfortable object-focusing.<\/p>","protected":false},"featured_media":97631,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[56,589,501],"product_tag":[],"class_list":["post-34225","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-telescoop-accessoires","product_cat-optische-accessoires-v1","product_cat-red-dot-finders-en-reflex-sights","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":34090,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-50mm-geleidingsbuisklemmen\/","url_meta":{"origin":34225,"position":0},"title":"William Optics 50mm (Guide) tube clamps","author":"","date":"16-11-2025","format":false,"excerpt":"William Optics 50mm comes as a set of two tracking scope rings with a Vixen-style prism bar and set screws with plastic tip for scratch-free mounting. \u00a0","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\/William-Optics-50mm-Geleidingsbuisklemmen-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-50mm-Geleidingsbuisklemmen-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-50mm-Geleidingsbuisklemmen-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-50mm-Geleidingsbuisklemmen-2.jpg?resize=700%2C400&ssl=1 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special mounting rail, extendable dew cap, front-helical focuser and a Rotolock 1.25\" clamp. \u00a0","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\/William-Optics-50mm-Guidescope-UniGuide-Ultra.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-50mm-Guidescope-UniGuide-Ultra.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-50mm-Guidescope-UniGuide-Ultra.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-50mm-Guidescope-UniGuide-Ultra.jpg?resize=700%2C400&ssl=1 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