{"id":32748,"date":"2025-11-07T11:24:24","date_gmt":"2025-11-07T10:24:24","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=32748"},"modified":"2026-03-12T18:44:29","modified_gmt":"2026-03-12T17:44:29","slug":"ioptron-cem40-ec-goto-high-precision-encoder-with-stativ-40mm","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/ioptron-cem40-ec-goto-high-precision-encoder-met-stativ-40mm\/","title":{"rendered":"iOptron Newton CEM40-EC with High Precision Encoders on Tripod"},"content":{"rendered":"

The\u00a0iOptron CEM40-EC<\/strong>\u00a0combines portability with professional precision. At only 8.2 kg, it weighs surprisingly little, but it can handle up to\u00a018 kg of optics and accessories<\/strong>\u00a0carry. Ideal for mobile observers as well as a permanent setup in your garden.<\/p>\n\n\n\n

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

Powerful performance in a lightweight design<\/strong><\/h3>\n\n\n\n

Thanks to the excellent balance between weight and carrying capacity, you will effortlessly take this mount to any dark sky. The\u00a0unique CEM design<\/strong>\u00a0distributes the weight perfectly, making the mount more stable and quiet - even in long exposures.<\/p>\n\n\n\n

Smart alignment in minutes<\/strong><\/h3>\n\n\n\n

The built-in\u00a0iPolar electronic polar finder<\/strong>\u00a0makes alignment fast and easy. Even if the North Star is not visible, iPolar helps you align perfectly. Just plug in your laptop, follow the directions, and you're ready to observe or photograph.<\/p>\n\n\n\n

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

Neat, reliable and user-friendly<\/strong><\/h3>\n\n\n\n

No more tangled cables - it\u00a0internal cable system<\/strong>\u00a0keeps everything safe inside. The large clamps make it easy to disconnect the axles, even with gloves on. The\u00a0Universal Self-Centering Saddle<\/strong>\u00a0ensures precise mounting of your telescope and works with\u00a0Both Losmandy and Vixen swallowtails<\/strong>.<\/p>\n\n\n\n

High precision without guiding<\/strong><\/h3>\n\n\n\n

The\u00a0EC version<\/strong>\u00a0has high-quality encoders on both axes that correct tracking without error. The accuracy is below\u00a00.25 arc second<\/strong>, which often eliminates the need for guiding in astrophotography.
This keeps your shots razor sharp, even during long sessions.<\/p>\n\n\n\n

Smart control with GoTo system<\/strong><\/h3>\n\n\n\n

With the\u00a0Go2Nova 8407+ hand controller<\/strong>\u00a0find any object at the touch of a button. The built-in\u00a0GPS<\/strong>\u00a0automatically fills in time, date and location. The screen is heated against condensation and the database contains more than\u00a0359,000 celestial objects<\/strong>.
Whether you are looking for planets, nebulae or galaxies - you will find them instantly.<\/p>\n\n\n\n

Quiet drive, low power consumption<\/strong><\/h3>\n\n\n\n

The\u00a0stepper motors<\/strong>\u00a0move smoothly and almost silently. That makes the CEM40-EC ideal for balcony observations or quiet nights in the field. You get smooth tracking, accurate tracking movements and longer battery life.<\/p>\n\n\n\n

Strongly built for years of use<\/strong><\/h3>\n\n\n\n

The CNC-machined aluminum housing looks sleek and remains sturdy in any environment. In short: the\u00a0CEM40-EC<\/strong>\u00a0is made for serious observers and astrophotographers looking for reliable performance in a compact size.<\/p>\n\n\n\n

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

Capacity<\/strong><\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Max. load capacity<\/td>18 kg<\/td><\/tr>
Counterweight(s)<\/td>1 \u00d7 4.5 kg<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Construction & Design<\/strong><\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Series<\/td>CEM40<\/td><\/tr>
Type<\/td>Mount<\/td><\/tr>
Design<\/td>Equatorial<\/td><\/tr>
Mounting weight<\/td>8.2 kg<\/td><\/tr>
Material shafts<\/td>Steel<\/td><\/tr>
Worm gear material<\/td>Aluminum<\/td><\/tr>
Material worm<\/td>Brass<\/td><\/tr>
Counterweight bar<\/td>280 mm<\/td><\/tr>
Counterweight bar diameter<\/td>28 mm<\/td><\/tr>
Mounting saddle<\/td>Losmandy & Vixen compatible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Drive & Accuracy<\/strong><\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Drive type<\/td>Wormwheel<\/td><\/tr>
Engine<\/td>Stepper motor (1.8\u00b0 \/ 128 microsteps)<\/td><\/tr>
Encoder<\/td>Yes (High Precision)<\/td><\/tr>
Accuracy<\/td>< 0.25 arc second<\/td><\/tr>
PEC correction<\/td>Yes<\/td><\/tr>
GoTo system<\/td>Yes<\/td><\/tr>
Software<\/td>Go2Nova 8407+<\/td><\/tr>
Object database<\/td>359.000+<\/td><\/tr>
Autoguiding<\/td>Yes (ST-4 port)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Ease of use<\/strong><\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Polar alignment<\/td>iPolar electronic viewfinder<\/td><\/tr>
Pole adjustment<\/td>0\u00b0 - 60\u00b0<\/td><\/tr>
Azimuth fine adjustment<\/td>\u00b16\u00b0<\/td><\/tr>
Hand controller<\/td>Included (heated screen)<\/td><\/tr>
Interfaces<\/td>USB, Autoguider<\/td><\/tr>
GPS<\/td>Yes<\/td><\/tr>
WLAN<\/td>Optional<\/td><\/tr>
Language<\/td>English<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Nutrition & Power<\/strong><\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Input voltage<\/td>12V DC<\/td><\/tr>
Current<\/td>5A<\/td><\/tr>
Cable Management<\/td>Internal<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Tripod<\/strong><\/h3>\n\n\n\n
Feature<\/th>Value<\/th><\/tr><\/thead>
Type<\/td>Steel tripod<\/td><\/tr>
Diameter of legs<\/td>38 mm<\/td><\/tr>
Material<\/td>Steel<\/td><\/tr>
Stability<\/td>Very stable, low vibration<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Included<\/strong><\/h3>\n\n\n\n
Section<\/th>Description<\/th><\/tr><\/thead>
Mount<\/td>iOptron CEM40-EC<\/td><\/tr>
Tripod<\/td>Steel tripod<\/td><\/tr>
Counterpoint<\/td>1 \u00d7 4.5 kg<\/td><\/tr>
Hand controller<\/td>Go2Nova 8407+<\/td><\/tr>
Pole finder<\/td>iPolar electronic<\/td><\/tr>
Transport case<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

iOptron CEM40-EC comes with Go2Nova 8407+ hand controller, sturdy tripod, integrated iPolar polar finder and transport cases - perfect accuracy for astrophotography without guiding.<\/p>","protected":false},"featured_media":96811,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[2790],"product_cat":[56,3097,3120,3100,590,538,3116],"product_tag":[],"class_list":["post-32748","product","type-product","status-publish","has-post-thumbnail","product_brand-ioptron","product_cat-telescoop-accessoires","product_cat-astrofotografie-monteringen","product_cat-equatoriale-monteringen","product_cat-geared-eq-mounts","product_cat-montering-accessoires","product_cat-monteringen","product_cat-telescoop-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":[],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/32748","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=32748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/96811"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=32748"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=32748"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=32748"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=32748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}