Celestron セレストロン 天体望遠鏡 NexStar 8SE (ネクスター 8SE) シュミットカセグレン式 口径 203.2 mm 自動導入 経緯台式 天体観測 惑星観測 11069

初心者の私としては手に余る高性能でした。 シュミットカセグレンは正確に光軸調整しなければ酷いピンボケ、 温度管理も厳密にしなければ像はムラムラ。 焦点距離の長さが仇となり空気の悪さが極端に画像劣化につながります。 ネットで調べながら調整を進めている途中ですが、条件が揃えば素晴らしい性能を発揮します。 スカイアライメント等の性能も申し分ありません。 ただ、国内販売店から買う気はしないですね。 私は$999＋送料$300＋国内送料3,000円で米国から直接 通販で購入しました。 アイピース等のオプションも全て日本の半額で買えます。 故障時の修理は自己責任となりますが、差額でもう１台買えますからね。

米アマゾンでの価格は1079ドルの商品です。 国内正規品は、日本語マニュアル、日本国内での保証、日本語化ハンドコントローラーが付いて 22万8千円になります。（2013年6月13日現在） 国内正規代理店であるサイトロンジャパンの名前が明記してあるにも関わらず、並行輸入品を販売 する業者さんは倫理観が欠如しているとしか思えません。一部業者さんは国内正規品より高い価格 で登録している始末です。 amazonにはメールを送りましたが対処がなされていないようなのでここで注意喚起させて頂きます。 ※追記 星一つの評価をさせていただいていましたが、商品自体の評価とは無関係でありレビュー本来の趣旨 とは違ってしまいますので、改めて星三つにさせていただきました。

El tripié es muy estable. La montura lo hace ideal para principiantes, ya que la configuración es muy sencilla y tiene una base de datos muy completa. Ideal para todos los niveles. Permite la observación y seguimiento de objetos planetarios y de espacio profundo (aunque no para fotografía de larga exposición, hay que adquirir una cuña por separado para configurarlo de manera ecuatorial). A mi parecer por el precio debería incluir el adaptador de corriente (ya que no viene incluido) y para usarlo sólo con sacarlo de la caja, es necesario colocarle 8 baterías AA (de buena calidad para que rindan una sesión de unas 4 o 5 horas). El Finder de punto rojo es muy práctico para alinear y encontrar "manualmente" objetos que se ven a simple vista. Viene con un solo ocular de 25mm, que da unos x81 aumentos y un campo de visión de unos 0°38' de arco.

This is my second scope. The first was a Bushnell 4.5 inch reflector of disputable quality. The mirror was good, but I had to replace the flimzy tripod and get better eyepieces to even attempt to see anything clearly. This telescope is superior a hundred fold . The image of jupiter, for instance, is crisp and clear with the included 25mm eyepiece, Seeing hasn't been very good here, in Quebec City, these last few days, but I was able to observe the king of planets with a 10mm eyepiece and enjoy details impossible to discern with my old reflector. Allignement of the go to is relatively simple. The hand controller has a red backlight to preserve night vision. However, with the backlight on during allignement, the scrolling of instructions on the hand controller display is unreadable. Tracking is good, but I have noticed that occasionaly, the scope seems to loose track of the object, which makes it necessary to use the hand controller to bring things back on track. One of the reasons I purchased this scope was because it can be easily transported and assembled. The tube need not be removed from the mount. It can be rotated vertically to align with the mount arm into a neat compact package easily storable in my OTA bag. The tripod is also compact and light. Contrary to other comments, I find the tripod and mount well built and sturdy enough for the nexstar. A question of opinion, I suppose. I purchased the 18774 power tank with this scope, which I think is essential. The tracking motor will eat through the required AA batteries in no time. I also burchased the AC adapter. There is only one 25mm eyepiece included with the scope. The purchase of a few more of different magnification, a barlow and a few filters such as a lunar filter is a good idea. However, the nexstar is highly usable with the included accessory. There are many resources on the web which are helpful in the use of this SCT. Michael Swanson's Nexstar site, for one, has a lot of good info, although some of it seems outdated. Youtube is also a good source of valuable information. Included in the box: Scope and tripod (obviously) , tripod accessory tray, level for the tripod, 25mm eyepiece, 1.25 inch Star diagonal, Starpointer finderscope, The Sky Level 1 Astronomy Software, NexRemote telescope control software, RS232 Cable (you'll need an RS232 to USB adapter for newer computers) The good: Crisp image Easy assembly Easily transportable and storable Sturdy enough tripod Easy alignement with the hand controller The Bad: Scrolling text on the hand controller is unreadable when backlight is on. Tracking sometimes lost. To conclude, I have so far no regrets with my purchase. And although I have only a few hours of observations with the scope, I am quite satisfied. With mars and saturn soon to be in opposition, I believe the next few weeks will bring loads of astronomical fun. ***After a couple months of use, I thought it would be a good idea to share my experience with this scope. I had mentionned in my initial review that the scrolling text on the hand controller (HC) was unreadable at night, with the red backlight on. As I navigated through the numerous menus on the HC, I realized that I could set the speed of the scrolling, which pretty well solved that problem. So scratch that from the "Bad". The gears in this scope produce some backlash. This problem is well documented on the web and must be taken into consideration when attempting to do a proper star alignement and expect the scope to center on planets. Without some ajustements in the settings of the HC, planets will never align properly in your eye piece once the star alignement has been performed. I've found some very helpful astronomy forums with valuable info regarding different settings to minimize the impact of this backlash. I've added a spotting scope which makes the optical tube back heavy. I had no idea that this could have an impact on the the alignement, but it does. Call that a newb's mistake, I suppose . All in all, my experience with this telescopes has greatly improved with the knowledge collected on the web. So, the second point on my "bad" list still applies, but it can be remedied. My allignements are still not perfect. I still have to test some settings, but I'm getting very close. It's only a matter of time. But all this does not minimize the fact that this great telescope has enabled me to observe the marvels of our solar system and beyond with a clarity that truly amazes me. It's easy to set up, light and transportable. A great buy for a beginner like myself, and certainly for more experienced amateur astronomers. And worthy of its fifth star. (PS. The celestron GPS for this scope is a very helpful addition, by the way.) Celestron 93969 SkySync GPS Accessory

Very nice and easy-to-use and assemble final i saw Jupiter

Where to start...first, I am so happy with this telescope! We transitioned from the Celestron 80MM Star Sense Explorer to this scope. Quite a jump, I know but so glad we did. So...it was a bit heavier than expected but manageable. I had to do a lot of reading and I am still learning about the "utilities" and settings and it definitely took some time to get used to. The manual is okay but you will find more on You tube and on the Celestron website for tutorials. Putting the scope together was simple enough. The red dot finder is not great, definitely need to upgrade that if you choose not to purchase the Star Sense Auto Align. More on that later. The 25 mm lens that comes with the scope is actually really good and we pair it with the Barlow lens. The scope arrived in great condition and was packaged nicely. The tripod is decent and easy to adjust. So back to the Auto Align. the first few times we took the scope out we attempted to use the 3-star alignment....never could get it to work correctly....having said that...we live in a light polluted area near Nashville so we expected some issues. After attempting this alignment several times we decided to purchase the Star Sense Auto Align...I know it is fairly pricey but wow, so glad we did!!! The Star Sense aligned the first time and has worked great each time (read my review on that one as well, hopefully it will help if you decide to purchase it). I had never seen the Orion Nebula before and my first early morning viewing was breathtaking! Views of Saturn, the Moon, and Jupiter are fantastic...you can see the Cassini division in Saturn's rings. Images are clear and detailed. The one thing that I was unaware of when purchasing this scope and only found out after watching some You Tube videos is that you have to upgrade the firmware on the mount....the joy of being a newbie! So things we purchased for this scope that may be of use for someone purchasing it: 1. Celestron X-Cel 12 MM lens 2. Celestron X-Cel 3x Barlow 3. Celestron Oxygen iii Filter 4. Baader UHC-S Nebula Filter 5. Celestron Solar Filter (8" for the 8 SE) 6. Celestron Lithium Power Tank 12 V (a must have or you will be replacing batteries every 30 minutes) 7. Colored filters but mainly Red, Violet, Blue, and a Moon filter...haven't used the other colors yet. Orion has a great set, although it is expensive. 8. A carrying case- we travel a lot....Celestron has one for this tube size, otherwise use the boxes it came in- they work just as great! 9. A pelican case for your eyepieces and filters....we purchased one with pullouts and made our own...or you can buy one from Celestron. 10. And a must have for those living in the South or colder climates...a dew shield or heater! 11. A red flash light or just use the red light on the Lithium Power tank. 12. Last but not least....for newbies...there are several companion books you can purchase....The Backyard Astronomer's Guide, Night Watch, The Total Skywatcher's Manual, and National Geographic has some great books. We love locating things in the sky, then looking them up and reading about them. The books also contain great tips and suggestions from purchasing eyepieces to filters, and how to best view objects in the night sky. All of these items were purchased on Amazon and we bought them over time but each purchase has enhanced our viewing and really made our nights out so enjoyable. Pros: So many but to name a few... Great, clear images, mostly newbie friendly- just have to educate yourself on operating the telescope to get the most out of it, a lot of items available for purchase to upgrade your experience, and with the star sense auto align you can spend hours outside enjoying clear skies. Not to say most people cannot get the 3-star alignment, we just lost patience with it and purchased the auto align :-) Cons: Manual not so great...You Tube has great videos from knowledgeable enthusiasts, it seems a bit heavy but manageable for one person. My husband is always with me so portability isn't an issue but just going out alone it may be somewhat heavy. Overall, I am so happy with this purchase and would recommend it for anyone wanting to add a more advanced telescope to their collection. There are several tutorials available online at Celestron and via You Tube that I encourage you to view. The telescope can be a bit intimidating for those that are new to the hobby but with a little research you will be loving it! We take it out at least 3x per week (skies permitting). The most beautiful site seen was the other morning I went out at 5 am and viewed Venus...the moon, and Orion's Nebula...so clear and amazing...it was definitely a treasure trove that morning, spent about 90 minutes viewing the sky until the Sun started to come up...very peaceful! We are still learning this telescope and each thing we learn just enhances our experience. I was hesitant on this purchase at first...a lot of money to spend plus accessories but we are so glad we decided to buy it! Definitely do your research to determine which telescope is best for you and your goals but this is a great one for those just entering the hobby or graduating from a starter scope. Now if we could only afford to buy another one of these so my husband and I don't fight over viewing time!

This is my first telescope since I was a teen. Setting up the telescope wasn’t easy. Need patience, but once set up great views. As the telescope only comes with one lens, you should include additional lenses with greater magnification.