{"id":32688,"date":"2025-11-06T17:02:20","date_gmt":"2025-11-06T16:02:20","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=32688"},"modified":"2026-03-03T20:21:17","modified_gmt":"2026-03-03T19:21:17","slug":"ioptron-cem120ec-mount-goto-high-precision-encoder","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/ioptron-cem120ec-montering-goto-high-precision-encoder\/","title":{"rendered":"iOptron CEM120EC Mount GoTo High Precision Encoder"},"content":{"rendered":"

The iOptron CEM120EC<\/strong> is built for anyone who wants to combine serious astrophotography with absolute stability. This advanced mount lifts your setup to observatory level. Thanks to its smart, center-balanced design, everything stays in perfect balance, even with heavy telescopes up to 52 kg<\/strong>.<\/p>\n\n\n\n

\"iOptron<\/figure>\n\n\n\n

Smart design for maximum stability<\/strong>
The secret of the CEM120EC lies in its centrally balanced construction<\/strong>. The weight of your telescope rests directly over the center of the tripod or column, keeping the mount in complete balance. You notice it immediately: less vibration, smoother movements and razor-sharp images, even with long exposures.<\/p>\n\n\n\n

Track stars with unprecedented precision<\/strong>
The built-in high-resolution encoder<\/strong> on the RA axis provides nearly flawless tracking. You don't have to constantly correct - the mount tracks your target object automatically, smoothly and accurately. This keeps stars pointed and details in nebulae clearly visible.<\/p>\n\n\n\n

Strong, but surprisingly light<\/strong>
Despite its huge load capacity of 52 kg, the CEM120EC itself weighs only 26 kg. This makes it stable, yet easy to move. The spring-loaded Losmandy saddle clamp<\/strong> holds your telescope firmly, with no slack or tilt.<\/p>\n\n\n\n

Smart cable management - never tangle again<\/strong>
Nothing is more frustrating than tangled cables during a night of recording. The CEM120EC has a advanced cable management system<\/strong> with connections in multiple places. Everything stays neat, protected and stress-free - so you can focus on the sky, not your cabling.<\/p>\n\n\n\n

User-friendly operation at every level<\/strong>
With the Go2Nova\u00ae 8407 V2 system.<\/strong> and built-in Wi-Fi and LAN<\/strong> operate the mount easily via hand controller, laptop or tablet. Thanks to the 32-channel GPS<\/strong> your system always knows where you are, so you can get started quickly. No fuss, just point, center and shoot.<\/p>\n\n\n\n

Reliable performance every session<\/strong>
The permanent periodic error correction (PPEC)<\/strong> keeps tracking error-free, while the precision stepper motors<\/strong> your movements smoothly and quietly. So you get consistent results night after night.<\/p>\n\n\n\n

Whether you're photographing a deep nebula or working from a fixed observatory setup - the iOptron CEM120EC provides the power, control and precision you need to capture top-quality images.<\/p>\n\n\n\n

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

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Series<\/td>CEM120<\/td><\/tr>
Type<\/td>Equatorial mount<\/td><\/tr>
Max. load capacity<\/td>52 kg<\/td><\/tr>
Mounting weight<\/td>26 kg<\/td><\/tr>
Counterweight<\/td>2 \u00d7 10 kg<\/td><\/tr>
Mounting saddle<\/td>Losmandy-style<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Mechanical & Motor<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Design<\/td>Centrally balanced (CEM)<\/td><\/tr>
Encoder<\/td>Yes (high resolution on RA axis)<\/td><\/tr>
Motors<\/td>Stepper motors (128 microsteps)<\/td><\/tr>
Periodic error correction<\/td>Yes (permanent \/ real-time PEC)<\/td><\/tr>
Tracking accuracy<\/td>\u00b10,15\u2033<\/td><\/tr>
Wormwheel (RA\/DEC)<\/td>216 mm, 360 teeth, aluminum<\/td><\/tr>
Wormas<\/td>26 mm brass<\/td><\/tr>
Shaft diameter (RA\/DEC)<\/td>80 mm<\/td><\/tr>
Bearing diameter<\/td>125 mm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Connectivity & Control<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
GoTo System<\/td>Go2Nova\u00ae 8407 V2<\/td><\/tr>
Number of objects<\/td>212.000+<\/td><\/tr>
Interfaces<\/td>RS232, USB, LAN, Wi-Fi<\/td><\/tr>
PC control<\/td>Yes (ASCOM compatible)<\/td><\/tr>
GPS<\/td>32-channel built-in<\/td><\/tr>
Autoguider port<\/td>Yes (ST-4)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Use & Setting<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Height range<\/td>0\u00b0-68\u00b0<\/td><\/tr>
Azimuth fine adjustment<\/td>\u00b15\u00b0<\/td><\/tr>
Polar alignment without a pole star<\/td>Yes<\/td><\/tr>
Level indicator<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Nutrition & Power<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Nutrition<\/td>12V DC (included)<\/td><\/tr>
Power consumption<\/td>700-1800 mA<\/td><\/tr>
Current<\/td>5 A<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Other data<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Tripod<\/td>Not included<\/td><\/tr>
Total weight<\/td>46 kg<\/td><\/tr>
Cable guide<\/td>Internal<\/td><\/tr>
Suitable for<\/td>Astrophotography, observatory use<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

iOptron CEM120EC comes with high precision encoder, GoTo mount, 2\u00d710 kg counterweights, GPS, Wi-Fi, LAN, ST-4 autoguider port and Go2Nova 8407 V2 hand controller - perfect for error-free tracking and astrophotographic precision.<\/p>","protected":false},"featured_media":96773,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[2790],"product_cat":[56,590,538],"product_tag":[],"class_list":["post-32688","product","type-product","status-publish","has-post-thumbnail","product_brand-ioptron","product_cat-telescoop-accessoires","product_cat-montering-accessoires","product_cat-monteringen","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":32689,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-cem120ec2-goto-dual-high-precision-encoder-120mm\/","url_meta":{"origin":32688,"position":0},"title":"iOptron Newton CEM120EC2 with Dual High Precision Encoders","author":"","date":"06-11-2025","format":false,"excerpt":"iOptron CEM120EC2 wordt geleverd met GoTo-montering, dubbele high precision encoders, 2x10\u202fkg contragewichten, Wi-Fi, LAN, GPS, ST-4 autoguiderpoort en Go2Nova 8407 V2-handcontroller \u2013 perfect voor ultieme astrofotografische precisie met realtime correctie.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":32747,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-cem40-ec-montering-goto-high-precision-encoder-met-2-statief\/","url_meta":{"origin":32688,"position":1},"title":"iOptron CEM40-EC Mount GoTo High Precision Encoder with 2\u2033 tripod","author":"","date":"07-11-2025","format":false,"excerpt":"iOptron CEM40-EC wordt geleverd met GoTo-montering, high precision encoder op beide assen, iPolar poolzoeker, 4,5\u202fkg contragewicht, 2\" statief, Go2Nova 8407+ handcontroller en ingebouwde GPS \u2013 ideaal voor astrofotografie zonder guiding.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":32748,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-cem40-ec-goto-high-precision-encoder-met-stativ-40mm\/","url_meta":{"origin":32688,"position":2},"title":"iOptron Newton CEM40-EC with High Precision Encoders on Tripod","author":"","date":"07-11-2025","format":false,"excerpt":"iOptron CEM40-EC comes with Go2Nova 8407+ hand controller, sturdy tripod, integrated iPolar polar finder and transport cases - 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