{"id":8673,"date":"2022-06-26T18:16:58","date_gmt":"2022-06-26T18:16:58","guid":{"rendered":"https:\/\/telescopes.ma\/?post_type=product&p=8673"},"modified":"2025-11-19T08:14:26","modified_gmt":"2025-11-19T08:14:26","slug":"omegon-cassegrain-telescope-pro-cc-203-2436-cem40","status":"publish","type":"product","link":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40","title":{"rendered":"Omegon Cassegrain telescope Pro CC 203\/2436 CEM40"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Optics<\/h3>\n

<\/a><\/td>\n<\/tr>\n

Type\u00a0<\/a><\/td>\nReflector<\/td>\n<\/tr>\n
Type of build\u00a0<\/a><\/td>\nCassegrain\u00a0<\/a><\/td>\n<\/tr>\n
Aperture (mm)\u00a0<\/a><\/td>\n203<\/td>\n<\/tr>\n
Focal length (mm)\u00a0<\/a><\/td>\n2436<\/td>\n<\/tr>\n
Aperture ratio (f\/)\u00a0<\/a><\/td>\n12<\/td>\n<\/tr>\n
Resolving capacity\u00a0<\/a><\/td>\n0,6<\/td>\n<\/tr>\n
Limit value (mag)\u00a0<\/a><\/td>\n14,7<\/td>\n<\/tr>\n
Light gathering capacity\u00a0<\/a><\/td>\n841<\/td>\n<\/tr>\n
Max. useful magnification\u00a0<\/a><\/td>\n400<\/td>\n<\/tr>\n
Tube weight (kg)\u00a0<\/a><\/td>\n8,1<\/td>\n<\/tr>\n
Tube length (mm)\u00a0<\/a><\/td>\n640<\/td>\n<\/tr>\n
tube diameter (mm)<\/td>\n230<\/td>\n<\/tr>\n
Tube construction<\/td>\nFull tube<\/td>\n<\/tr>\n
\n

Focuser<\/h3>\n

<\/a><\/td>\n<\/tr>\n

Type of build\u00a0<\/a><\/td>\nCrayford\u00a0<\/a><\/td>\n<\/tr>\n
Connection ( to eyepiece)\u00a0<\/a><\/td>\n2<\/td>\n<\/tr>\n
\n

Mount<\/h3>\n

<\/a><\/td>\n<\/tr>\n

Mounting type\u00a0<\/a><\/td>\nEquatorial\u00a0<\/a><\/td>\n<\/tr>\n
Type of build\u00a0<\/a><\/td>\nCEM<\/td>\n<\/tr>\n
GoTo control\u00a0<\/a><\/td>\nyes<\/td>\n<\/tr>\n
\n

General<\/h3>\n<\/td>\n<\/tr>\n

Series<\/td>\nPro CC<\/td>\n<\/tr>\n
\n

Area of application<\/h3>\n

<\/a><\/td>\n<\/tr>\n

Moon & Planets<\/td>\nyes<\/td>\n<\/tr>\n
Nebulae & galaxies<\/td>\nyes<\/td>\n<\/tr>\n
Nature Observation<\/td>\nyes<\/td>\n<\/tr>\n
Astrophotography<\/td>\nyes<\/td>\n<\/tr>\n
Sun\u00a0<\/a><\/td>\nnot recommended\u00a0(Only with appropriate Sun filter)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Wonderful astro photos with a professional telescope<\/b><\/p>\n

This Cassegrain telescope was created to make better, more beautiful astro photos. Pictures have more contrast and a sharper field of view right up to the edge. It\u2019s no surprise that professional astronomers almost exclusively use this telescope design. Now this technology is affordable for amateurs too. Can you imagine if you too could produce astro photos to a professional standard?<\/p>\n

 <\/p>\n

The advantages at a glance:<\/b><\/p>\n

    \n
  • Primary mirror with 94% reflection for brighter images than a standard telescope.<\/li>\n
  • 8 light baffles for more contrast and sharper images.<\/li>\n
  • Quartz mirror: better imaging whilst the telescope is cooling down. Focus remains stable even over a long evening of photography.<\/li>\n
  • Crayford focuser with 2\u201d and 1.25\u201d adapters: no mirror shift and greater back focus. For astrophotography: simply attach your SLR camera using the 50mm and 25mm extension connectors supplied.<\/li>\n
  • Full illumination with APS-C sensors or sensors with up to 30mm diameter<\/li>\n<\/ul>\n

     <\/p>\n

     <\/p>\n

    Who is this telescope suitable for?<\/b><\/p>\n

    A Cassegrain telescope is a system for more beautiful astro photos that you can be proud of. Many telescope designs are supposed to do everything from photos to visual observations. But that\u2019s not entirely correct: everyone knows that there is no such thing as an expert on everything. For this reason, this telescope has been created specifically with astrophotographers in mind. We don\u2019t want an average telescope for average photos, but instead a capable tool for astrophotography. For this it is perfect – it will produce first-class images of the night sky for you.<\/p>\n

     <\/p>\n

    Full illumination for most sensors<\/b><\/p>\n

    The Omegon Cassegrain telescope is a master photographer of the night sky. Attach cameras with sensors up to 30mm diameter and benefit from illumination without vignetting.<\/p>\n

     <\/p>\n

    Why is a Cassegrain better than a Schmidt-Cassegrain telescope?<\/b><\/p>\n

    The Omegon Cassegrain\u2019s primary mirror is parabolic and the secondary mirror has a hyperbolic shape. This means fewer aberrations: the image area is flatter, there is less coma and the sharpness of the field is considerably higher. For you that means: you will take photographs with significantly better images of stars and with visible fine detail. All in all your astro photos will look fascinating.<\/p>\n

     <\/p>\n

    That\u2019s better than a SC telescope:<\/b><\/p>\n

      \n
    • Sharper pictures<\/li>\n
    • No lens in the optical path, and so an infra-red filter is not needed for planet photography<\/li>\n
    • Larger usable image field for astrophotography with fewer optical aberrations<\/li>\n
    • Minimal obstruction, giving you more contrast<\/li>\n
    • No chromatic aberration<\/li>\n
    • No ghosting on the image<\/li>\n<\/ul>\n

       <\/p>\n

       <\/p>\n

      Quicker cooling times<\/b><\/p>\n

      Do you have to set the telescope up and then wait an eternity? It doesn\u2019t have to be that way. The quartz parabolic primary mirror hardly changes its profile during the cooling phase and is considerably more stable than Pyrex. The advantage for you: a crystal-clear image from the very first minute.<\/p>\n

       <\/p>\n

      Quartz primary mirror with 94% reflection<\/b><\/p>\n

      94% enhanced coating: because every percentage point counts where brighter pictures with more contrast are concerned. This mirror is a strong contender as it offers 6% more reflection than the standard variation built into most telescopes.<\/p>\n

       <\/p>\n

      You can look forward straight away to brighter images and faint deep-sky objects.<\/p>\n

       <\/p>\n

      Crayford: more than enough focus<\/b><\/p>\n

      Attach any accessory to your telescope and don’t worry about focus. With most cameras it\u2019s no problem to get sharp images; the reason for this is the long back focus. You can also use a reducer or even binoculars.<\/p>\n

       <\/p>\n

      8 lens hoods<\/b><\/p>\n

      The 8 lens hoods ensure more contrast for sharper images in which you can see more detail.<\/p>\n

       <\/p>\n

      No mirror shift<\/b><\/p>\n

      Ping pong was great fun, but as a photographer catching planetary nebulae in your eyepiece is not such a great game. The good news: it’s no longer necessary. Because unlike a SC telescope this Cassegrain has a fixed parabolic primary mirror, so the object doesn\u2019t jump across the eyepiece, it stays fixed on the spot.<\/p>\n

       <\/p>\n

      What objects can you photograph?<\/b><\/p>\n

      The Omegon Cassegrain is a master for all compact objects in the solar system or in interstellar space. Even small nebulae can be reached with the long focal length. That makes this telescope especially good for:<\/p>\n

        \n
      • lunar craters<\/li>\n
      • planets<\/li>\n
      • distant groups of galaxies – planetary nebulae<\/li>\n
      • globular star clusters<\/li>\n<\/ul>\n

         <\/p>\n

         <\/p>\n

         <\/p>\n

        The mount head weighs only 8.2 kg, yet can support a payload of up to 18 kg. This extremly good\u00a0payload to weight ratio of 2.5<\/b>\u00a0makes the CEM40 versatile. You can carry it to your favoriert place under a dark sky or at your backyard observatory with a relatively small pier.<\/p>\n

        But there are\u00a0more advantages<\/b>:<\/p>\n

          \n
        • An integrated\u00a0electronic polar finder scope<\/b>\u00a0(iPolar) ensures accurate alignment even at times when the pole star is obscured.<\/li>\n
        • Large levers<\/b>\u00a0on its quick-lock drive engagement system make it easy to snap its gears into place even when wearing gloves.<\/li>\n
        • There’s little chance of your cables getting snagged with the CEM40’s\u00a0internal cable management system<\/b>.<\/li>\n
        • The mount comes with the new\u00a0Universal Self-Centering Saddle<\/b>\u00a0for Losmandy and Vixen style dovetails.<\/li>\n
        • The CNC body looks sharp but is really robust.<\/li>\n<\/ul>\n

           <\/p>\n

          The\u00a0GoTo-Technology<\/b>\u00a0features a Go2Nova 8407+ controller with integrated heater for its large display, a 212,000 object library, integrated\u00a032-channel-GPS<\/b>\u00a0and ST-4 auto guiding port.<\/p>\n

          Another great feature besides the center-balance is the\u00a0ultra-quiet<\/b>\u00a0low power consumption stepper motor drive systems. Both models of the CEM40 are precise trackers, the CEM40-EC version delivering <0.25 arcsecond accuracy with its high-resolution encoder and its real time periodic error correction (RPEC).<\/p>\n

          The CEM40 is a extremly versatile and advanced mount.<\/p>\n","protected":false},"featured_media":8674,"template":"","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_brand":[],"product_cat":[22,192],"product_tag":[],"class_list":{"0":"post-8673","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-telescopes","7":"product_cat-telescopes-complets","9":"first","10":"instock","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"yoast_head":"\nOmegon Cassegrain telescope Pro CC 203\/2436 CEM40 - Astroshop Maroc<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Omegon Cassegrain telescope Pro CC 203\/2436 CEM40 - Astroshop Maroc\" \/>\n<meta property=\"og:description\" content=\"Wonderful astro photos with a professional telescope This Cassegrain telescope was created to make better, more beautiful astro photos. Pictures have more contrast and a sharper field of view right up to the edge. It\u2019s no surprise that professional astronomers almost exclusively use this telescope design. Now this technology is affordable for amateurs too. Can you imagine if you too could produce astro photos to a professional standard?   The advantages at a glance: Primary mirror with 94% reflection for brighter images than a standard telescope. 8 light baffles for more contrast and sharper images. Quartz mirror: better imaging whilst the telescope is cooling down. Focus remains stable even over a long evening of photography. Crayford focuser with 2\u201d and 1.25\u201d adapters: no mirror shift and greater back focus. For astrophotography: simply attach your SLR camera using the 50mm and 25mm extension connectors supplied. Full illumination with APS-C sensors or sensors with up to 30mm diameter     Who is this telescope suitable for? A Cassegrain telescope is a system for more beautiful astro photos that you can be proud of. Many telescope designs are supposed to do everything from photos to visual observations. But that\u2019s not entirely correct: everyone knows that there is no such thing as an expert on everything. For this reason, this telescope has been created specifically with astrophotographers in mind. We don\u2019t want an average telescope for average photos, but instead a capable tool for astrophotography. For this it is perfect - it will produce first-class images of the night sky for you.   Full illumination for most sensors The Omegon Cassegrain telescope is a master photographer of the night sky. Attach cameras with sensors up to 30mm diameter and benefit from illumination without vignetting.   Why is a Cassegrain better than a Schmidt-Cassegrain telescope? The Omegon Cassegrain\u2019s primary mirror is parabolic and the secondary mirror has a hyperbolic shape. This means fewer aberrations: the image area is flatter, there is less coma and the sharpness of the field is considerably higher. For you that means: you will take photographs with significantly better images of stars and with visible fine detail. All in all your astro photos will look fascinating.   That\u2019s better than a SC telescope: Sharper pictures No lens in the optical path, and so an infra-red filter is not needed for planet photography Larger usable image field for astrophotography with fewer optical aberrations Minimal obstruction, giving you more contrast No chromatic aberration No ghosting on the image     Quicker cooling times Do you have to set the telescope up and then wait an eternity? It doesn\u2019t have to be that way. The quartz parabolic primary mirror hardly changes its profile during the cooling phase and is considerably more stable than Pyrex. The advantage for you: a crystal-clear image from the very first minute.   Quartz primary mirror with 94% reflection 94% enhanced coating: because every percentage point counts where brighter pictures with more contrast are concerned. This mirror is a strong contender as it offers 6% more reflection than the standard variation built into most telescopes.   You can look forward straight away to brighter images and faint deep-sky objects.   Crayford: more than enough focus Attach any accessory to your telescope and don't worry about focus. With most cameras it\u2019s no problem to get sharp images; the reason for this is the long back focus. You can also use a reducer or even binoculars.   8 lens hoods The 8 lens hoods ensure more contrast for sharper images in which you can see more detail.   No mirror shift Ping pong was great fun, but as a photographer catching planetary nebulae in your eyepiece is not such a great game. The good news: it's no longer necessary. Because unlike a SC telescope this Cassegrain has a fixed parabolic primary mirror, so the object doesn\u2019t jump across the eyepiece, it stays fixed on the spot.   What objects can you photograph? The Omegon Cassegrain is a master for all compact objects in the solar system or in interstellar space. Even small nebulae can be reached with the long focal length. That makes this telescope especially good for: lunar craters planets distant groups of galaxies - planetary nebulae globular star clusters       The mount head weighs only 8.2 kg, yet can support a payload of up to 18 kg. This extremly good\u00a0payload to weight ratio of 2.5\u00a0makes the CEM40 versatile. You can carry it to your favoriert place under a dark sky or at your backyard observatory with a relatively small pier. But there are\u00a0more advantages: An integrated\u00a0electronic polar finder scope\u00a0(iPolar) ensures accurate alignment even at times when the pole star is obscured. Large levers\u00a0on its quick-lock drive engagement system make it easy to snap its gears into place even when wearing gloves. There's little chance of your cables getting snagged with the CEM40's\u00a0internal cable management system. The mount comes with the new\u00a0Universal Self-Centering Saddle\u00a0for Losmandy and Vixen style dovetails. The CNC body looks sharp but is really robust.   The\u00a0GoTo-Technology\u00a0features a Go2Nova 8407+ controller with integrated heater for its large display, a 212,000 object library, integrated\u00a032-channel-GPS\u00a0and ST-4 auto guiding port. Another great feature besides the center-balance is the\u00a0ultra-quiet\u00a0low power consumption stepper motor drive systems. Both models of the CEM40 are precise trackers, the CEM40-EC version delivering <0.25 arcsecond accuracy with its high-resolution encoder and its real time periodic error correction (RPEC). The CEM40 is a extremly versatile and advanced mount.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40\" \/>\n<meta property=\"og:site_name\" content=\"Astroshop Maroc\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-19T08:14:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/astroshop.ma\/wp-content\/uploads\/2022\/06\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40\",\"url\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40\",\"name\":\"Omegon Cassegrain telescope Pro CC 203\\\/2436 CEM40 - Astroshop Maroc\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/astroshop.ma\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/astroshop.ma\\\/wp-content\\\/uploads\\\/2022\\\/06\\\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp\",\"datePublished\":\"2022-06-26T18:16:58+00:00\",\"dateModified\":\"2025-11-19T08:14:26+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#primaryimage\",\"url\":\"https:\\\/\\\/astroshop.ma\\\/wp-content\\\/uploads\\\/2022\\\/06\\\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp\",\"contentUrl\":\"https:\\\/\\\/astroshop.ma\\\/wp-content\\\/uploads\\\/2022\\\/06\\\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp\",\"width\":800,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/astroshop.ma\\\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/astroshop.ma\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/astroshop.ma\\\/?page_id=394\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Omegon Cassegrain telescope Pro CC 203\\\/2436 CEM40\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/astroshop.ma\\\/#website\",\"url\":\"https:\\\/\\\/astroshop.ma\\\/\",\"name\":\"Astroshop Maroc\",\"description\":\"Des instruments astronomiques pour chaque astronome au Maroc\",\"publisher\":{\"@id\":\"https:\\\/\\\/astroshop.ma\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/astroshop.ma\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/astroshop.ma\\\/#organization\",\"name\":\"Astroshop Maroc\",\"url\":\"https:\\\/\\\/astroshop.ma\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/astroshop.ma\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/astroshop.ma\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/M20_Logo_1.jpg\",\"contentUrl\":\"https:\\\/\\\/astroshop.ma\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/M20_Logo_1.jpg\",\"width\":501,\"height\":334,\"caption\":\"Astroshop Maroc\"},\"image\":{\"@id\":\"https:\\\/\\\/astroshop.ma\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Omegon Cassegrain telescope Pro CC 203\/2436 CEM40 - Astroshop Maroc","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40","og_locale":"en_US","og_type":"article","og_title":"Omegon Cassegrain telescope Pro CC 203\/2436 CEM40 - Astroshop Maroc","og_description":"Wonderful astro photos with a professional telescope This Cassegrain telescope was created to make better, more beautiful astro photos. Pictures have more contrast and a sharper field of view right up to the edge. It\u2019s no surprise that professional astronomers almost exclusively use this telescope design. Now this technology is affordable for amateurs too. Can you imagine if you too could produce astro photos to a professional standard?   The advantages at a glance: Primary mirror with 94% reflection for brighter images than a standard telescope. 8 light baffles for more contrast and sharper images. Quartz mirror: better imaging whilst the telescope is cooling down. Focus remains stable even over a long evening of photography. Crayford focuser with 2\u201d and 1.25\u201d adapters: no mirror shift and greater back focus. For astrophotography: simply attach your SLR camera using the 50mm and 25mm extension connectors supplied. Full illumination with APS-C sensors or sensors with up to 30mm diameter     Who is this telescope suitable for? A Cassegrain telescope is a system for more beautiful astro photos that you can be proud of. Many telescope designs are supposed to do everything from photos to visual observations. But that\u2019s not entirely correct: everyone knows that there is no such thing as an expert on everything. For this reason, this telescope has been created specifically with astrophotographers in mind. We don\u2019t want an average telescope for average photos, but instead a capable tool for astrophotography. For this it is perfect - it will produce first-class images of the night sky for you.   Full illumination for most sensors The Omegon Cassegrain telescope is a master photographer of the night sky. Attach cameras with sensors up to 30mm diameter and benefit from illumination without vignetting.   Why is a Cassegrain better than a Schmidt-Cassegrain telescope? The Omegon Cassegrain\u2019s primary mirror is parabolic and the secondary mirror has a hyperbolic shape. This means fewer aberrations: the image area is flatter, there is less coma and the sharpness of the field is considerably higher. For you that means: you will take photographs with significantly better images of stars and with visible fine detail. All in all your astro photos will look fascinating.   That\u2019s better than a SC telescope: Sharper pictures No lens in the optical path, and so an infra-red filter is not needed for planet photography Larger usable image field for astrophotography with fewer optical aberrations Minimal obstruction, giving you more contrast No chromatic aberration No ghosting on the image     Quicker cooling times Do you have to set the telescope up and then wait an eternity? It doesn\u2019t have to be that way. The quartz parabolic primary mirror hardly changes its profile during the cooling phase and is considerably more stable than Pyrex. The advantage for you: a crystal-clear image from the very first minute.   Quartz primary mirror with 94% reflection 94% enhanced coating: because every percentage point counts where brighter pictures with more contrast are concerned. This mirror is a strong contender as it offers 6% more reflection than the standard variation built into most telescopes.   You can look forward straight away to brighter images and faint deep-sky objects.   Crayford: more than enough focus Attach any accessory to your telescope and don't worry about focus. With most cameras it\u2019s no problem to get sharp images; the reason for this is the long back focus. You can also use a reducer or even binoculars.   8 lens hoods The 8 lens hoods ensure more contrast for sharper images in which you can see more detail.   No mirror shift Ping pong was great fun, but as a photographer catching planetary nebulae in your eyepiece is not such a great game. The good news: it's no longer necessary. Because unlike a SC telescope this Cassegrain has a fixed parabolic primary mirror, so the object doesn\u2019t jump across the eyepiece, it stays fixed on the spot.   What objects can you photograph? The Omegon Cassegrain is a master for all compact objects in the solar system or in interstellar space. Even small nebulae can be reached with the long focal length. That makes this telescope especially good for: lunar craters planets distant groups of galaxies - planetary nebulae globular star clusters       The mount head weighs only 8.2 kg, yet can support a payload of up to 18 kg. This extremly good\u00a0payload to weight ratio of 2.5\u00a0makes the CEM40 versatile. You can carry it to your favoriert place under a dark sky or at your backyard observatory with a relatively small pier. But there are\u00a0more advantages: An integrated\u00a0electronic polar finder scope\u00a0(iPolar) ensures accurate alignment even at times when the pole star is obscured. Large levers\u00a0on its quick-lock drive engagement system make it easy to snap its gears into place even when wearing gloves. There's little chance of your cables getting snagged with the CEM40's\u00a0internal cable management system. The mount comes with the new\u00a0Universal Self-Centering Saddle\u00a0for Losmandy and Vixen style dovetails. The CNC body looks sharp but is really robust.   The\u00a0GoTo-Technology\u00a0features a Go2Nova 8407+ controller with integrated heater for its large display, a 212,000 object library, integrated\u00a032-channel-GPS\u00a0and ST-4 auto guiding port. Another great feature besides the center-balance is the\u00a0ultra-quiet\u00a0low power consumption stepper motor drive systems. Both models of the CEM40 are precise trackers, the CEM40-EC version delivering <0.25 arcsecond accuracy with its high-resolution encoder and its real time periodic error correction (RPEC). The CEM40 is a extremly versatile and advanced mount.","og_url":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40","og_site_name":"Astroshop Maroc","article_modified_time":"2025-11-19T08:14:26+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/astroshop.ma\/wp-content\/uploads\/2022\/06\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40","url":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40","name":"Omegon Cassegrain telescope Pro CC 203\/2436 CEM40 - Astroshop Maroc","isPartOf":{"@id":"https:\/\/astroshop.ma\/#website"},"primaryImageOfPage":{"@id":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#primaryimage"},"image":{"@id":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#primaryimage"},"thumbnailUrl":"https:\/\/astroshop.ma\/wp-content\/uploads\/2022\/06\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp","datePublished":"2022-06-26T18:16:58+00:00","dateModified":"2025-11-19T08:14:26+00:00","breadcrumb":{"@id":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#primaryimage","url":"https:\/\/astroshop.ma\/wp-content\/uploads\/2022\/06\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp","contentUrl":"https:\/\/astroshop.ma\/wp-content\/uploads\/2022\/06\/Omegon-Cassegrain-telescope-Pro-CC-203-2436-CEM40.webp","width":800,"height":800},{"@type":"BreadcrumbList","@id":"https:\/\/astroshop.ma\/?product=omegon-cassegrain-telescope-pro-cc-203-2436-cem40#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/astroshop.ma\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/astroshop.ma\/?page_id=394"},{"@type":"ListItem","position":3,"name":"Omegon Cassegrain telescope Pro CC 203\/2436 CEM40"}]},{"@type":"WebSite","@id":"https:\/\/astroshop.ma\/#website","url":"https:\/\/astroshop.ma\/","name":"Astroshop Maroc","description":"Des instruments astronomiques pour chaque astronome au Maroc","publisher":{"@id":"https:\/\/astroshop.ma\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/astroshop.ma\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/astroshop.ma\/#organization","name":"Astroshop Maroc","url":"https:\/\/astroshop.ma\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/astroshop.ma\/#\/schema\/logo\/image\/","url":"https:\/\/astroshop.ma\/wp-content\/uploads\/2025\/12\/M20_Logo_1.jpg","contentUrl":"https:\/\/astroshop.ma\/wp-content\/uploads\/2025\/12\/M20_Logo_1.jpg","width":501,"height":334,"caption":"Astroshop Maroc"},"image":{"@id":"https:\/\/astroshop.ma\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/astroshop.ma\/index.php?rest_route=\/wp\/v2\/product\/8673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astroshop.ma\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/astroshop.ma\/index.php?rest_route=\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astroshop.ma\/index.php?rest_route=\/wp\/v2\/media\/8674"}],"wp:attachment":[{"href":"https:\/\/astroshop.ma\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8673"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/astroshop.ma\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=8673"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/astroshop.ma\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=8673"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/astroshop.ma\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=8673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}