{"id":91110,"date":"2025-12-04T14:21:51","date_gmt":"2025-12-04T13:21:51","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=91110"},"modified":"2026-02-27T16:40:46","modified_gmt":"2026-02-27T15:40:46","slug":"skywatcher-0-77x-reducer-flattener-esprit-150ed-2","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/skywatcher-0-77x-reducer-flattener-esprit-150ed-2\/","title":{"rendered":"Sky-Watcher 0.77x Focal Reducer & Field Flattener for Esprit-150ED"},"content":{"rendered":"

Skywatchers Flattener 150<\/h3>\n\n\n\n

Keep your stars sharp to the edge<\/strong>
The Skywatchers Flattener 150 corrects curvature in the field of view of your telescope. Without this correction, stars are stretched and out of focus toward the edge. With this flattener, your images remain sharp, clear and true to nature, even with large sensors.<\/p>\n\n\n\n

\n
\"Skywatchers<\/figure>\n<\/figure>\n\n\n\n

Perfect for fast astrophotography<\/strong>
For telescopes with a short focal ratio, such as f\/5 to f\/7, you see the effect of image field distortion most strongly. The reducer\/flattener makes your Esprit 150 faster and optimal for photography, so stars are sharp to the edge of your image.<\/p>\n\n\n\n

\n
\"Skywatchers<\/figure>\n<\/figure>\n\n\n\n

Easy to assemble<\/strong>
You place the flattener between your telescope and camera. It has an M48 threaded connection with 55 mm backfocus, ideal for DSLR cameras with suitable bayonet adapter. Remove the adapter and you can use an M71 \u00d7 1 threaded connection with up to 75 mm backfocus for homemade adapters.<\/p>\n\n\n\n

Fast and fully corrected shots<\/strong>
The flattener has three lenses and a reduction factor of 0.77\u00d7. This makes your Esprit Apo faster, up to f\/5.4. It generates a fully corrected image circle of 36 mm, perfect for APS-C and full-frame cameras.<\/p>\n\n\n\n

Robust and lightweight<\/strong>
The housing is aluminum and the lenses have FMC coating. It supports filters up to 2 inches and weighs only 910 grams. Thus, it is sturdy, light and easy to use so you can focus on the perfect shot.<\/p>\n\n\n\n

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

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

Feature<\/th>Value<\/th><\/tr><\/thead>
Suitable for telescopes<\/td>Skywatcher Esprit 150<\/td><\/tr>
Connection on camera side<\/td>M48<\/td><\/tr>
Focal reducer<\/td>0,77\u00d7<\/td><\/tr>
Backfocus (mm)<\/td>55<\/td><\/tr>
Corrected field of view (mm)<\/td>36<\/td><\/tr>
Number of lenses<\/td>3<\/td><\/tr>
Optics coating<\/td>FMC<\/td><\/tr>
Filter thread<\/td>yes (2\u2033)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Value<\/th><\/tr><\/thead>
Type<\/td>Flattener, Corrector, Reducer<\/td><\/tr>
Design<\/td>Flattener<\/td><\/tr>
Weight (g)<\/td>910<\/td><\/tr>
Exterior material<\/td>Aluminum<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Skywatcher's Flattener 150 comes with 0.77x reducer\/flattener, M48 camera connector, 2\u2033 filter thread and 55 mm backfocus - ideal for razor-sharp astrophotos with the Skywatcher Esprit 150. \u00a0<\/p>","protected":false},"featured_media":98259,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[542],"product_cat":[469,3107,3105,3104,3106,592],"product_tag":[],"class_list":["post-91110","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","product_cat-astro-fotografie","product_cat-flatteners","product_cat-optische-accessoires","product_cat-overige-astrofotografie-accessoires","product_cat-reducers","product_cat-reducers-flatteners","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":91133,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-0-77x-reducer-flattener-esprit-150ed\/","url_meta":{"origin":91110,"position":0},"title":"Sky-Watcher 0.77x Focal Reducer & Field Flattener for Esprit-150ED","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatcher's M48 Esprit-150ED comes with integrated M48 camera connector and specially designed field flattener for the Skywatcher Esprit 150 - ideal for taking razor-sharp astrophotos across the full field of view.\u00a0\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\/12\/Skywatchers-Esprit-150ED-M48-Field-Flattener.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-Esprit-150ED-M48-Field-Flattener.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-Esprit-150ED-M48-Field-Flattener.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-Esprit-150ED-M48-Field-Flattener.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":91131,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-m48-field-flattener-esprit-120ed\/","url_meta":{"origin":91110,"position":1},"title":"Sky-Watcher M48 Field Flattener for Esprit-120ED Triplet","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatcher's 120 Flattener comes with integrated M48 camera connector and specially designed flattener optics for the Skywatcher Esprit 120, ensuring that stars are captured razor sharp right to the edge of the field of view. \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\/12\/Skywatcher-Flattener-Esprit-120.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-Flattener-Esprit-120.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-Flattener-Esprit-120.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-Flattener-Esprit-120.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":91107,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-0-77x-reducer-flattener-esprit-120ed-2\/","url_meta":{"origin":91110,"position":2},"title":"Sky-Watcher 0.77x Focal Reducer & Field Flattener for Esprit-120ED","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatchers Flattener 120 wordt geleverd met 0,77x reducer\/flattener, M48-camera-aansluiting, 2\" filterdraad en 55 mm backfocus \u2013 ideaal voor haarscherpe astrofoto\u2019s met de Skywatcher Esprit 120. \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\/12\/Skywatchers-Flattener-120-077x-Esprit-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-Flattener-120-077x-Esprit-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-Flattener-120-077x-Esprit-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-Flattener-120-077x-Esprit-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":91128,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-m48-field-flattener-esprit-100ed\/","url_meta":{"origin":91110,"position":3},"title":"Sky-Watcher M48 Field Flattener for Esprit-100ED Triplet","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatcher's 100 Flattener comes with M65 telescope mount, M48 camera adapter, M74 adapter ring and 55 mm backfocus - 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