{"id":90879,"date":"2025-12-03T10:15:44","date_gmt":"2025-12-03T09:15:44","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=90879"},"modified":"2026-02-27T17:16:34","modified_gmt":"2026-02-27T16:16:34","slug":"skywatcher-ap-120-840-esprit-120ed-apochromatic-refractor-professional-ota","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/skywatcher-ap-120-840-esprit-120ed-apochromatische-refractor-professional-ota\/","title":{"rendered":"Skywatcher AP 120\/840 ESPRIT-120ED Apochromatic Refractor Professional OTA"},"content":{"rendered":"

Skywatcher AP 120\/840 - Bright, clean and made for serious performance<\/strong><\/h2>\n\n\n\n

The Skywatcher AP 120\/840<\/strong> is a perfect choice when you are looking for sharpness, color purity and calmness in your image. You will see an immediate difference as soon as you look through this telescope: calm stars, clear details and an image that remains tight even at high magnification. This is a telescope for those who want more than a standard entry-level telescope.<\/p>\n\n\n\n

\n
\"Skywatcher<\/figure>\n<\/figure>\n\n\n\n

Really clear image without color errors<\/h3>\n\n\n\n

The Esprit series uses a triplet design with high-quality glass. That means your image stays clean, with no purple edges or distortion. You see more contrast, making fine structures stand out more clearly. This helps you tremendously when viewing planets or nebulae. You need to correct less with your eyes because the image is quiet by itself.<\/p>\n\n\n\n

\n
\"Skywatcher<\/figure>\n<\/figure>\n\n\n\n

More light, more detail<\/h3>\n\n\n\n

The opening of 120 mm lets in a lot of light. As a result, objects remain bright even when you zoom in further. You can see sharp edges on the moon, fine cloud bands on Jupiter and contrast in bright nebulae. The telescope works intuitively. You aim, focus and see immediate results.<\/p>\n\n\n\n

Focuser that gives you control<\/h3>\n\n\n\n

The 3\u2033 Linear-Power focuser is made for heavy cameras and large sensors. It keeps moving smoothly even when using accessories. You can rotate it so you can quickly find the right camera position. The fine 1:11 setting gives you control over the last millimeters of sharpness. This makes it much easier to get a perfectly sharp image, both visually and for photographs.<\/p>\n\n\n\n

For visual and photography<\/h3>\n\n\n\n

This telescope works great for those with visual viewing as well as those who want to take pictures. You get clarity, color purity and mechanical stability all in one package. Your image remains tight even when using higher magnifications or trying longer exposures.<\/p>\n\n\n\n

What we recommend<\/h3>\n\n\n\n

\u2713 Moon: excellent fit
\u2713 Planets: very detailed
\u2713 Deep-sky: bright and contrasty
\u2713 Astrophotography: very suitable
\u2717 Earth observation: not suitable<\/p>\n\n\n\n

Specifications<\/strong><\/h2>\n\n\n\n

Optics<\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Type<\/td>Refractor<\/td><\/tr>
Design<\/td>Apochromat<\/td><\/tr>
Aperture (mm)<\/td>120<\/td><\/tr>
Focal length (mm)<\/td>840<\/td><\/tr>
Aperture ratio (f\/)<\/td>7<\/td><\/tr>
Resolution<\/td>0,96<\/td><\/tr>
Limit value (mag)<\/td>12,2<\/td><\/tr>
Light output<\/td>290<\/td><\/tr>
Max. useful magnification<\/td>240<\/td><\/tr>
Tube weight (kg)<\/td>9,61<\/td><\/tr>
Tube material<\/td>Aluminum<\/td><\/tr>
Tube construction<\/td>Full tube<\/td><\/tr>
Lens design<\/td>Triplet<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Focuser<\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Design<\/td>Linear Crayford<\/td><\/tr>
Ocular connection<\/td>3\u2033<\/td><\/tr>
Reduction<\/td>1:11 fine focusing<\/td><\/tr>
Connection (camera side)<\/td>M74<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Mount<\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Design<\/td>OTA<\/td><\/tr>
Type of mount<\/td>Without mount<\/td><\/tr>
GoTo steering<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Included accessories<\/h3>\n\n\n\n
Section<\/th>Description<\/th><\/tr><\/thead>
Ocular<\/td>LET 28 mm<\/td><\/tr>
Seeker<\/td>9\u00d750<\/td><\/tr>
Star Diagonal<\/td>2\u2033, 90\u00b0<\/td><\/tr>
Tube Rings<\/td>Yes<\/td><\/tr>
Dovetail<\/td>Losmandy-Style<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Series<\/td>ESPRIT<\/td><\/tr>
Total weight (kg)<\/td>12,13<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Application<\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Moon & Planets<\/td>Yes<\/td><\/tr>
Nebulae & galaxies<\/td>Yes<\/td><\/tr>
Nature observation<\/td>Yes<\/td><\/tr>
Astrophotography<\/td>Yes<\/td><\/tr>
Sun<\/td>Not recommended (only with appropriate sunscreens)<\/td><\/tr>
Recommended for<\/td>Advanced<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Skywatcher AP 120\/840 comes with 3\u2033 Linear-Power focuser with 2\u2033 and 1.25\u2033 adapters, 2\u2033 LET 28mm eyepiece, 2\u2033 90\u00b0 star prism, 9\u00d750 viewfinder, tube rings and Losmandy swallowtail - ideal for advanced observers and astrophotographers who want colorfast, high-contrast images. \u00a0<\/p>","protected":false},"featured_media":98164,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[542],"product_cat":[51,567],"product_tag":[],"class_list":["post-90879","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","product_cat-telescopen","product_cat-refractors","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"outofstock","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":90896,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-ap-100-550-esprit-100ed-apochromatische-refractor-professional-ota\/","url_meta":{"origin":90879,"position":0},"title":"Skywatcher AP 100\/550 ESPRIT-100ED Apochromatic Refractor Professional OTA","author":"","date":"03-12-2025","format":false,"excerpt":"Skywatcher AP 100\/550 comes with 2-inch 90\u00b0 zenith mirror, 9x50 angle viewfinder, tube rings, Losmandy swallowtail, 2\"\/1.25\" eyepiece adapter, extendable dew cap and sturdy padded transport case - ideal for advanced astrophotographers looking for a compact, bright triplet-apo. \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-AP-100-550-ESPRIT-100ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-100-550-ESPRIT-100ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-100-550-ESPRIT-100ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-100-550-ESPRIT-100ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90891,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-ap-80-400-esprit-80ed-apochromatische-refractor-professional-ota\/","url_meta":{"origin":90879,"position":1},"title":"Skywatcher AP 80\/400 ESPRIT-80ED Apochromatic Refractor Professional OTA","author":"","date":"03-12-2025","format":false,"excerpt":"Skywatcher AP 80\/400 comes with 2-inch 90\u00b0 zenith mirror, 9x50 angle viewfinder, Vixen swallowtail, 2\"\/1.25\" eyepiece adapter, extendable dew cap and sturdy padded transport case - ideal for advanced astrophotographers looking for a compact, bright triplet-apo for widefield shooting. \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-AP-80-400-ESPRIT-80ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-80-400-ESPRIT-80ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-80-400-ESPRIT-80ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-80-400-ESPRIT-80ED-Apochromatische-Refractor-Professional-OTA-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90885,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-ap-150-1050-esprit-150ed-apochromatische-refractor-professional-ota\/","url_meta":{"origin":90879,"position":2},"title":"Skywatcher AP 150\/1050 ESPRIT-150ED Apochromatic Refractor Professional OTA","author":"","date":"03-12-2025","format":false,"excerpt":"Skywatcher AP 150\/1050 comes with 3-inch Linear-Power focuser with 2 and 1.25-inch adapters, 2-inch LET 28mm eyepiece, 2-inch 90\u00b0 star prism, 9x50 viewfinder, tube rings, Losmandy swallowtail, dew cap and sturdy transport cases - ideal for advanced astrophotographers and observatories demanding maximum sharpness and color accuracy. \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-AP-150-1050-ESPRIT-150ED-Apochromatische-Refractor-Professional-OTA-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1050-ESPRIT-150ED-Apochromatische-Refractor-Professional-OTA-4.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1050-ESPRIT-150ED-Apochromatische-Refractor-Professional-OTA-4.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1050-ESPRIT-150ED-Apochromatische-Refractor-Professional-OTA-4.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90872,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-ap-150-1200-ed-eq6r-apochromatische-refractor-goto\/","url_meta":{"origin":90879,"position":3},"title":"Skywatcher AP 150\/1200 ED EQ6R Apochromatic Refractor GoTo","author":"","date":"03-12-2025","format":false,"excerpt":"Skywatcher AP 150\/1200 comes with EQ6-R PRO SynScan GoTo mount, steel tripod, 2x 5kg counterweights, tube rings, Vixen swallowtail, dew cap, transport cases, accessory holder, polar finder and 12V cigarette lighter socket - ideal for advanced observers and astrophotographers who want razor-sharp, colorfast deep-sky and planetary images. \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-AP-150-1200-ED-EQ6R-Apochromatische-Refractor-GoTo-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1200-ED-EQ6R-Apochromatische-Refractor-GoTo-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1200-ED-EQ6R-Apochromatische-Refractor-GoTo-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1200-ED-EQ6R-Apochromatische-Refractor-GoTo-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90901,"url":"https:\/\/staging.telescoop.nl\/en\/skywatcher-ap-62-400-evolux-62ed-apochromatische-refractor-star-adventurer-gti-wi-fi-goto-set\/","url_meta":{"origin":90879,"position":4},"title":"Skywatcher AP 62\/400 Evolux-62ED Apochromatic Refractor Star Adventurer GTi Wi-Fi GoTo SET","author":"Info telescoop","date":"03-12-2025","format":false,"excerpt":"Skywatcher AP 62\/400 comes with Evolux-62ED ED-refractor in foam-lined aluminum case, 0.9x flattener, Star Adventurer GTi Wi-Fi GoTo mount with steel tripod, counterweight, Vixen swallowtail, tube rings, retractable dew cap and battery compartment - ideal for advanced astrophotographers seeking an ultra-compact widefield setup with full GoTo operation. \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-AP-62-400-Evolux-62ED-Apochromatische-Refractor-Star-Adventurer-GTi-Wi-Fi-GoTo-SET-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-62-400-Evolux-62ED-Apochromatische-Refractor-Star-Adventurer-GTi-Wi-Fi-GoTo-SET-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-62-400-Evolux-62ED-Apochromatische-Refractor-Star-Adventurer-GTi-Wi-Fi-GoTo-SET-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-62-400-Evolux-62ED-Apochromatische-Refractor-Star-Adventurer-GTi-Wi-Fi-GoTo-SET-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90950,"url":"https:\/\/staging.telescoop.nl\/en\/sky-watcher-evostar-150ed-apo\/","url_meta":{"origin":90879,"position":5},"title":"Sky-Watcher Evostar 150ED APO Refractor (OTA)","author":"Info telescoop","date":"03-12-2025","format":false,"excerpt":"Skywatcher AP 150\/1200 comes with tube rings, Vixen swallowtail, retractable dew cap, accessory shoe and padded transport case - ideal for advanced observers and astrophotographers seeking maximum sharpness and color purity. \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-AP-150-1200-Apochromatische-Refractor-EvoStar-ED-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1200-Apochromatische-Refractor-EvoStar-ED-OTA-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1200-Apochromatische-Refractor-EvoStar-ED-OTA-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1200-Apochromatische-Refractor-EvoStar-ED-OTA-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/90879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=90879"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98164"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=90879"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=90879"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=90879"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=90879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}